If like to see more explosion stuff go check Pommijätkät UA-cam channel ua-cam.com/channels/r1cNqiNxK46w93zw9KfTLg.html and if you want to learn more about concrete stuff check out Perustava UA-cam channel ua-cam.com/channels/gooHpBSNYX-CSUxTUxeuYQ.html
Intissä olin spollena ja kun käytiin läpi murtopanoksia, niin me käytettii teräsbetoniseinään 2kg penoa (C4 tyyppinen muoviräjähde) ja ton tyyppistä vesi "kannua" niin sitte tuli jo miehen mentävä reikä tommoseen seinään. Vähän jäi ne harjateräkset eteen mutta, kyllä siitä läpi mahtu. Ja meille sanottiin, että sodanaika me oltais vaan talon nurkan takana siitä räjähdyksestä.
@@ChongPangBoom: that Concrete is High density. MicroFibre and steel reinforced concrete in a vibrating cast. That probably costs a 1000 dollars or more. When you talk about 4 walls per room. Ceilings. Pillars. Etc. You quickly escape a third world countries budget for both manufacturing and purchasing and sale. We have the technology to have Supercrete now that can build structures twice the size of the burj khalifa. The problem is no one can make it to the quantity or budget required to Make it possible.
@@TheOneAndOnlyMrH Well Finland does have long experience in making concrete bunkers. Due to civil defense legislation pretty much every big apartment complex, office block etc. does have an air raid shelter on bottom floor or in the basement under the building.
@@paulimans be carefull tho cause the hand grenade vending machine is right next to the apple vending machine. Make sure to not mix them up when going to buy your lunch.
All 'professional' means is you get paid to do something. If someone gives you a penny to throw a FRAG grenade at a fish, technically you are a professional grenade fisherman.
@@spiritus1512 Yes they invented the term "Molotov Cocktail" during the Winter war with the Soviet Union. Molotov who was the head of Soviet Foreign Affairs claimed that they weren't bombing Finnish cities but dropping breadbaskets. SO the Finns nicknamed the bombs Molotov Breadbaskets and nicknamed the Molotov Cocktail to go with the bread. They however did not invent the Molotov Cocktail weapon, just the name.
@Lex Bright Raven It also didn't help that the Soviets just had a purge of their officers so they lost a lot of competent officers. Oh and were using their southern soldiers who weren't used to to the cold because they assumed the northern ones might like the Finns too much.
Or, if you live in a state where it is legal...you can go to Walmart mart and buy tannerite. If you want it cheaper you can buy ammonium nitrate and aluminum dust, mix it together in a proper ratio, and bam! Explosive. Good luck getting the blasting caps though...
I was trained in demolitions 32 years ago in the army. Both my memory and math are rusty, but I believe that the breaching charge formula for TNT is P = R(cubed)KC where P equals pounds of TNT to use, R is the radius (thickness) of the concrete, K is the material factor (reinforced concrete is 1.76 for a foot thick wall and .96 for a two-foot thick wall) and C is the tamping factor. To breach a fortification that is 1/3 of a meter (1ft) thick with a resulting hole large enough for men to pass through, even though the wall is only a foot thick, you need a hole that has a diameter of about 4ft. so you need to double the R to get a two foot radius around the blast. 2 cubed is 8. As I said, the K factor for more than one foot but less than 3 feet of reinforced concrete is .96 therefore 8 X .96 is 7.68. Now you have to decide on the tamping and placement method. If you're going to place the charge against a flat wall like that, and you hope for a hole that is 4ft. in diameter, you have to place the charge half the radius of the desired breach above the ground at the 2ft. point and then consider the tamping factor. An elevated un-tamped charge for a 1ft. thick reinforced concrete wall is 1.8, so 17.68 X 1.8 tells you that you need a TNT charge of 13.824. You then round that up to the next pound or 14. So, if you don't intend to tamp it, you need a charge of 14 pounds of TNT elevated at two feet above the wall and placed against the surface of the wall. That's about two regular-sized satchel charges. If it were me, I'd probably split that into two 7 pound charges because I'm only trying to breach 12-inches of concrete. If I place one charge at about 18 inches above the ground and another at 36 inches I should be able to get full penetration and end up with an opening 4ft by 4ft. Then, once you've breached the wall, you have to deal with the rebar, because the TNT will not defeat the rebar. At that point, it would be necessary to use either a metal-cutting torch or metal-cutting charges on any rebar within a 270 degree arc of that circle in order to be able to bend the rebar out of the hole so one can pass through. Don't try this at home. In fact, don't try this at all unless/until you check those figures with a demo expert, because my demo math skills are 32 years rusty and I personally wouldn't trust them without having them confirmed by another demo guy.
These Finns are hilarious!! With what little demolitions training I received in the infantry, I think the results were pretty much as expected. Another thing I’ve learned is that we have a lot of Finns here in Northern Ontario and, for some strange reason, their accents are more understandable in a sauna.
This "improvisation" is an application adapted for a purpose, a tool designed to do a job. In a controlled test environment. It's not a synonym for crime and terror.
Because the COV-19 regulations every Finn has to stand closer to each others than normally they would.... They must hope that regulations end and they can return back to further distance than 2 meters.
Reinforced concrete is amazing stuff... I had a structural engineer once tell me that, given the advancements in earthquake-frequented zones over the past century and a half, we can expect some of our skyscrapers to last thousands of years before weather wears them down. Here's an example of why.
There is a term for the effect of the shaped charge. When the explosive causes almost no damage to the surface it touches, but sends shockwaves through the material and causes shrapnel on the other side is known as "spalling".
@@noncog1 Yeah, but they cause spalling as they pass through, for the most part at least, and the specific mechanism described was of HESH. Neither Heat not AP shells are focused on or really able to create spall in that manner.
@@InsufficientGravitas kinetic shells absolutely can cause meaningful spalling, which contributed to the understanding of such effect and led to the development of hesh. Kinetic round spalling was a real and impactful aspect of armored fighting in the pre-modern era. The first rounds used specifically with spalling being intended were kinetic rounds not capable of a meaningful complete penetration, spall lining was used before hesh.
@@Soundbrigade or go to Russia to buy RPG-28. RPG-28 tandem warhead went thru 0.9 meter of steel and reinforced concrete. ua-cam.com/video/LGNZiKndJe8/v-deo.html ua-cam.com/video/m-zqsxeK5jQ/v-deo.html
The effect where the back side of the concrete breaks and flies off even though there's no hole is called "spalling". It's caused by pressure waves inside the concrete bouncing around and interacting; when two waves meet in the right way, it creates an area where the concrete is "stretched" further than it can withstand, causing fragmentation of the material. An interesting related fact is that the spalling effect is a consideration in the design of armor for tanks and other vehicles. Incomplete penetrations and explosions can cause spalling on the other side the the armor, creating a shotgun-like blast that can injure personnel and damage equipment. In fact, there are munitions created specifically to take advantage of spalling! Because of this, many armored vehicles have layers of material such as Kevlar lining the inside of the armor, in order to catch the spall fragments.
ah yes, HESH or High-Explosive Squash Head, basically it's a very thin-walled shell filled with C4 or other kind of explosive something, range doesn't matter, just let it stick and boom, done.
I was once privileged to observe the demolition of a thin (5" thick) concrete bridge deck slab, from a damaged bridge with a washed-out abutment. The slab had so much reinforcing in it that, even though it had a 45-degree twist along its length, there were no visible cracks. The thinner the slab the more difficult it is, because the blast just blows a hole and escapes into thin air. The contractor had a free supply of time-expired Anzomex boosters (TNT + PETN). These were maybe an inch and a half diameter and a couple of inches long. So he drilled strings of holes about 4" centres, inserted and fired the charges, and it cut the slab into neat six-foot squares of concrete joined by the reinforcing which he then cut with a gas axe. Notably, the steel reinforcing wasn't damaged by the blast at all, though the concrete was neatly removed from around and between it.
" The slab had so much reinforcing in it that, even though it had a 45-degree twist along its length, there were no visible cracks. " hehe, the amount of false/wrong informations under this video is just impresive... Or did you simply forgot to put your glasses on your nose that day?(because that is the only logical explanation of your story...).
@@Bialy_1 I said, "no visible cracks". That was based on standing at one end and looking. This was a ~30-foot long single-lane bridge deck slab on a back road. And I did find the absence of obvious cracks quite remarkable. I'm pretty sure that if I'd got down on my knees and examined it closely, there would have been microcracks all over it - which is why there weren't any obvious big cracks. And there was nothing wrong with my eyesight. Evidently I should have been more careful to measure and record things precisely at the time and specify carefully the limitations of my observation in a UA-cam comments section. (Yeah that was sarcasm).
Concrete is really good at taking pressure, but pretty weak against being ripped apart, that's why the inner side takes little damage (compression) and the outer side rips away
There's actually a breaching charge designed to break through solid concrete walls, it's called the concrete charge (duh) the hard part is dealing with rebar reinforcement because the c-4 shatters the concrete and makes it crack, but it also keeps the c-4 away from the steel bars. To blow through steel the c-4 needs to be in direct contact with the steel to cut it. So reinforced concrete walls are hard to blow a hole through because the rebar reinforcement will still be untouched
@@manny4707 yeah but it makes sense, rebar is mild steel which takes a considerably higher pressure to cut it with explosives. While concrete cracks pretty easily
I wonder if you could just use four linear shaped charges to make a square hole. I imagine the size of the charges required to make it through in one go would be ridiculous.
@@lachlanhatcher9108 I love nothing more than to boast about how much Finnish I've recently learned before quoting some quality phrase like 'WAT DA HUELL?' xD
@@HavokTheorem Pay attention to the guy shouting the warnings before bang. Note how he says the word "kolme" as very pronounced "koloome". That guys is from Ostrobothnia.... for sure. Not that it helps you with anything, it is just very, very funny to a Finn.. And i'm also from Ostrobothnia, that is the way i say it too.. but it is always funny to hear it that strong.
When I travelled to Finland I was so grateful everyone I met spoke some English. All of my colleagues from Finland were fluent, even more so than the guys and gals on this channel.
@@wcg66 In Western and Southern part of Finland, almost all born after early 1970s are required to be able to understand and speak conversational English (in addition to Finnish and Swedish), but closer to Russian border, there is still people who don't understand English... My mother is from South-East Finland and she was quite old when she did learn to understand and speak English.
The damage on the other side of the concrete wall is from what is called spalling, and it works exactly the way you describe. That's actually why tanks have anti-spalling fabric on the inside of the armor; early anti-tank weaponry caused most of its blast-only damage that way.
That type of damage is called spalling(and not the cause of it) and in this case it is so significant becaue concrete is an anisotropic material(contrary to for example armor plate on a tank...).
never underestimate saunas in the middle of nowhere in a stupid cold climate......at least the fins fixed the russians rifles after they pried them from the fingers of the frozen corpses....
The fun thing is that Finland actually got a lot of the crazy ideas from former Soviet Union countries, including Russia and Estonia... Finns are known to be quite crazy and less careful than other tribes. Hand, leg and eye injuries are quite common in Finland.
Also free education, free healthcare, police require education, 12% gun ownership (and dropping every year), minimum wage is livable, incarceration is more like therapy and rehabilitation, education standards are high, good trade so cost of most products are low, they have exceeded their target for the share of renewable energy (ne of the highest figures among all industrialized nations and the third highest in the EU), good social aptitude (kids learn good communication skills in school), no religious extremists, politics are very transparent, corruption is actually enforced, banks are held accountable, the wealthy pay taxes and are enforced, and of course it's absolutely beautiful land that doesn't have large corporate interests trying to rape it for it's natural resources and destroying ecosystems/environments. Most countries have a very long way to go to even begin to be a great enough place to live like Finland has it. While some countries education standards are so low (**cough** USA **cough**) that even mentioning any of the above will be written off as "socialism is bad".
One of the funniest and most entertaining videos on youtube. As an ex Royal Engineer, pretty well versed in improvising various explosive devices, I knew the water contained charge would work, water is very good at containing and directing explosive force and this is a well used technique for increasing the power of a charge, either for breaching or for example, demolishing a bridge. Even the water bottle one would have done more damage if the charge had been against the wall with the bottle behind it, rather than having the water protecting the wall, directing the charge away from the wall.
The water jug charge reminded me of the petard bombs used for wall and gate breaching during the medieval era. Even though the petards used packed gunpowder instead of high explosives would the way they did damage to a wall be the same as the jug charge in the video?
Thank you for explaining that. With the incredibly thick accents I couldn't understand 90% of what these peeps were saying, and I had no idea what the point was of using the water-filled jerry can. I'd like to know more about the physics behind this. I also did not understand the attempts before and after the water can.
@@peedee4065 the explosive compresses the metal and accelerates it immensly, if well arranged a shaped charge creates a plasma beam, that cuts through almost everything.
Im here too and my best and only guess is that we both like the wintergaten marble machine stuff, which is finnish, and the algorithm somehow figured maybe people who like one finnish channel might also like other finnish channels regardless of the content.
I feel like that first explosion was a good demonstration of how a grenade would disperse its energy when tossed into like a bunker or trench, those things really pack a bigger punch than they make them out to.
yea the movies don't do them justice. First thing to my mind was "yea you're dead.. if you was under that roof, you are dead..". Honestly the grenade and the waterjug at the end were the two scariest ones..
Ok, I have to throw my hat in here, and I know these comments are sort of old, but I feel the need to shed some light. An M67 grenade will without a doubt be able punch holes in you with shrapnel up to about 10 meters/yards. It only creates a certain amount of shrapnel though so the further you get from the explosion the better chance you have. If you are within a bunker, no chance without a miracle. Now as to the concussion, each and every explosion has a wave concussion, the force of the explosion determines the shockwave output. There is no magic involved. As far as movies doing them justice, no movies make them look way stronger than they really are. The mechanics of breaching a wall are a lot more simple than this video makes them out to be. The explosion sends out the shockwave in an orb, just like blowing a bubble, and it will follow the path of least resistance if there is an obstruction. It's as simple as making the concrete wall the path of least resistance. I will just let you ponder that for yourself.
Figured I'd chime in here too because Hollywood grenades peeve me. I have trained with M67 hand grenades. Thrown plenty. Trained Soldiers to use them. They are not that impressive. They will not flip a car. They will not obliterate a building. Their purpose is anti-personnel fragmentation, not explosive force. For those interested, I am sure grenade range training videos are posted.... Small boom, alot of small holes.
"We have two schools of thought: Lauri with the Internet, and Henri with the knowledge of explosives." And we, the audience, have another fine example of priceless Finnish deadpan humour.
The "wet fart" was basically a HESH charge, which is very effective against brittle substances like concrete. Also, the liner in those shaped charges was a large piece of steel, which may be too thick. Something thinner (1-2mm) would require much less energy to vaporize. Nice video! Crazy Finns as usual
@@ieuanhunt552 any soft metal I believe, since it behaves as a liquid when it is solid when used in this way and thus softer would be easier to deform into a jet as opposed to using something like mild steel.
@@tatotaytoman5934 You have 5 likes for comment that is so wrong... heh Steel and copper are both ok and both aren't "soft metal". Pyramids were build with copper chisels... copper in shaped charges generaly is giving extra 10% of penetration but it is much more expensive that is why older Soviet tank HEAT projectiles were made with steel liner. Also mild steel is soft type of steel->low % of carbon... And the metal hardness is irrelevant, that is why lead is not used as it is soft and in the same time much denser than steel or copper so lead should be perfect according to your theory. The parameter that is the key is speed of sound... you need to exceed the speed of sound in your metal with the speed of the shockwave created by your kaboom material.
It was interesting to see the spalling on the backside of the wall for the charges that didn't penetrate. This is why tanks have a spall liner on the inside of the tank, to prevent the tank to turn into a hand grenade even when the tank havent been properly penetrated
The speed of sound in and elasticity of the material may play a big part in reducing spalling, as well as the tensile strength. A lot of buildings have a damper layer on the backside of the solid mass of rock like polyurea, with a catchers mitt like kevlar bolted around the edges.
@@PatGilliland the one with c4 and metal pipe was also a shaped charge. they should have used copper though. it has a lower metling point but i had expected it to go through the wall like a heat charge and not a heshcharger. im not an expert like you guys but i thought it was pretty interesting
My dad is a retired miner and he said back in the day they just guesstimated the amount of explosives for a job and dudes would come into work drunk all the time. Fucking crazy times LOL
Love the Mythbusters reference. Lol. They essentially made a water charge. Ive seen one in Iraq blow through a bank vault thick steel door. It was like 20 zip zags of det. Cord and 3 saline bags. Hole large enough for a hand grenade to clear it out. Lol. Then we had engineers come clear the rest of the door
Water is a nearly non compressable liquit. Air on the other hand can be compressed quite well, since it is a gas (think aboout air cannisters for divers ). Therefore placing a layer of water (in form of the water filled jerry can) above the C4 channels the energy of the explosion towards the wall. If it wasnt for the water all the exothermic reaction energy would just expand into the air, and therfore being useless. The water blocks that direction, so the hot gases can only expant thrpugh the wall...
During the first explosion with the handgrenade it really puts into perspective how much punch such a small object can deal, I mean it isnt any larger than an apple but it would still wipe an enemy-infested room clean in under a second. Now my next question is why I cant just get a block of C4 in sweden... for uhhh... "research purposes"
@@zxcvbnmasdfghjkl51 we do that in the US too. It seems to me more countries have hybrid measurement systems than the jokes and stereotypes make it seem.
The water will penetrate due to the fact water cannot be compressed. So, you will be moving the solid water mass totally through the concrete, even though it's reinforced with steel rod support. Great shots of all your explosives used.
The dent you made in the water jug was VERY important because it shaped the energy. Without the dent, much more of the energy would have dissipated perpendicular to the direction of penetration.
It'd be more expensive but you should really do each test on a fresh wall because each explosion causes stress cracks so it gets weaker after each test. but still cool watching it :D
Love the mix of measurements here. Explosives measured out in grams and kilos, and the depth of the holes it made quoted in inches. Something for everyone. :-)
THis is awesome! Also, I should say, your design of the water jug with the C4 on it is . . . *similar* to a late medieval breaching charge called a *petard*, which was basically an iron cauldron packed with black powder, and bolted to a thin piece of wood. A soldier chosen to carry the weapon, called a 'petardier' would carry it up to the heavy wooden gates of a castle or walled city, lean it or prop it against the surface and light the fuse, then attempt to run in his overthick armor (meant to protect him from missile fire from the walls . . . mostly) back to his own men before the charge went off. However, at the time, they lacked a proper understanding of how to make and use timed fuses, so the petards often had a tendency to detonate early, killing the petardier. This is where the phrase "Hoisted by your own Petard" came from. ;)
in modern times that kind of technique would be advertised as "life-long jobs available, with immediate chances for upward mobility" (well and sideways, and generally scattered in every direction)
"For 'tis the sport to have the engineer hoist with his own petard; and 't shall go hard, but I will delve one yard below their mines, and blow them at the moon."
Nordic UA-cam One guy explains in finnglish One guy who isn’t abled to wear a wool cap correctly translates into pidgin english One girl smiling and giggling
LOL it kinda is, but... do you think most people building _a frickin fortified bunker_ are even remotely forthcoming with their intentions? I feel like asking "will these walls hold up to, say, the work of a professional explosive teams?" may or may not raise some red flags. But maybe not, for all I know that's a perfectly normal question to ask in Finland!
@@idontwantahandlethough No, it's the other way around. The client asks: "Sure, your walls look nice, but are they stable enough?" And then the company points to this video and the client is more than convinced. 🙂
the reason why the last 2 explosive devices went through the wall is: the conrete has microfractures because of the explosions from before. If you would change the order of the explosions, the watertank would not get through the concrete wall.
For anyone wondering, The reason the explosion isn't huge and slow, Is because those types of explosions are typically used in movies, for dramatic effect. Explosions like these, are essentially for military use. And because of that; require a fast detonation to acquire a fast shockwave. And the reason is; More damage, etc.
I love this video! The accents, the English, the explosions get bigger and bigger…their enthusiasm, and she nods and grins so enthusiastically! The are just having so much fun! Brilliant!
@@jorgeleiva6067 The formula for C4 can be found on the internet. Trough the wonders of chemistry you can rearrange the atoms in sugar and air into C4 if you wanted.
@@jannikheidemann3805 just because they have similar compositions it doesn't mean you can make it from just that. It requires access to a good few solvents and other compounds that may or may not be controlled substances.
I am not surprised that the "wet fart" worked, but I AM surprised that it worked so well. When using liquid pressure wave limiters, vegetable oil is typically much better than water. Still, this proves that water is also viable. It would be interesting to see a comparison.
I'd never heard of this method before. Does the specific speed of sound through the liquid limit the shockwave's propagation in that direction, or what is the working principle?
@@EatRawGarlic I am not qualified to answer - I have only seen it done in practice by professional blasters (I am a special effects pyrotechnician so I never handle C4/dynamex). The two times I have seen it in practice it was done with vegetable oil. But yes, my unqualified guess is that the density of the liquid affects the shockwave's propagation much like you said.
@@EatRawGarlic I could see two effects: 1) The shockwave that goes into the liquid layer will be mostly reflected back towards the wall at the liquid-air interface, because of the large difference in acoustic impedance. 2) The mass of the liquid provides an inertial confinement - it needs some time for it to get moving and the explosion gases to be able to start expanding, so that even though the peak overpressure isn't bigger, it lasts for a longer amount of time.
Water impulse charges have been the standard for a long time in the military. Doesn’t really matter what liquid you use as liquids don’t compress. Plus 5 gallons of water is a lot easier and cheaper. Plus oils are flammable under compression.
and even Lauri accidentally mentioned "water was more than what the pros use" meaning he is probably a more educated amateur, just playing ignorant for dramatic effect.
I thought the same thing when I started watching the channel but then he started explaining advanced math I hadn’t learned yet in my engineering classes and I realized he’s a professional for real!
In Finland, it's in the safety and healthcare regulations that one must destruct one concrete element from each batch for quality control... It's same for any products sold to customers, including food and drinks.
funny thing is that wall can still be used as building material if you bend the bars back and repair the holes with fresh concrete. even with that big hole in it the overall integrety is mostly intact.
The thing with anyone who isn't a native English speaker is that there will be a couple words we will just never get right unless you learned English at a young age but it's still very clear what you're talking about because in this situations where you're misusing these words it's two words with similar definitions but they're used in different contexts so it's clear to the native English speaker what you mean because you can only mean one possible thing. For example I haven't heard you guys make this mistake but I've heard military history visualized make it what he'll be talking about the logistics of something or other and he'll say instead of how much fuel he'll say how many fuel which is technically incorrect but blatantly obvious what you mean.
His vocabulary is absolute garbage. He almost never uses the proper prepositions and skips articles altogether. Just check the title. He's making a statement, not asking a question. If he would like to ask a question it should be "is it" not "it is".
If like to see more explosion stuff go check Pommijätkät UA-cam channel ua-cam.com/channels/r1cNqiNxK46w93zw9KfTLg.html and if you want to learn more about concrete stuff check out Perustava UA-cam channel ua-cam.com/channels/gooHpBSNYX-CSUxTUxeuYQ.html
Congratulations on that hole! Water is an amazing material. Basically no compression at all, cheap, no pollution. Happy new year
Pls do Thermite next
it's not sharpnel, it's a debris.
tnx, now i can break out of my jail..
Intissä olin spollena ja kun käytiin läpi murtopanoksia, niin me käytettii teräsbetoniseinään 2kg penoa (C4 tyyppinen muoviräjähde) ja ton tyyppistä vesi "kannua" niin sitte tuli jo miehen mentävä reikä tommoseen seinään. Vähän jäi ne harjateräkset eteen mutta, kyllä siitä läpi mahtu. Ja meille sanottiin, että sodanaika me oltais vaan talon nurkan takana siitä räjähdyksestä.
Never seen a better commercial for concrete walls...
@@ChongPangBoom money
@@ChongPangBoom: that Concrete is High density. MicroFibre and steel reinforced concrete in a vibrating cast.
That probably costs a 1000 dollars or more.
When you talk about 4 walls per room. Ceilings. Pillars. Etc.
You quickly escape a third world countries budget for both manufacturing and purchasing and sale.
We have the technology to have Supercrete now that can build structures twice the size of the burj khalifa.
The problem is no one can make it to the quantity or budget required to Make it possible.
Can't glass bottles be used to strengthen concrete structures?
If I ever get a bunker built, I'd want their walls :-)
@@TheOneAndOnlyMrH Well Finland does have long experience in making concrete bunkers. Due to civil defense legislation pretty much every big apartment complex, office block etc. does have an air raid shelter on bottom floor or in the basement under the building.
“Everyone in Finland has hand grenade”
*Russians start sweating*
I’m pretty sure they sweated in the 1940s about the Finns
Yeah they give them in the mothers baby boxes that every mother gets. Also you can get them free from school vending machines.
@@paulimans be carefull tho cause the hand grenade vending machine is right next to the apple vending machine. Make sure to not mix them up when going to buy your lunch.
Russians is exactly why Finns sell grenades in grocery stores.
Americans: The trees speak vietnamese
Chinese: The rice field speak japanese
Russians: The snowbanks speak finnish.
Everybody gangsta till you hear in a distance: _kolme, kaksi, yksi..._
what does this mean?
@@thunermay7171 3, 2, 1...
@@gustavselin1197 And the thing he said at 2:18 ?
Pyrofreak Well first word is ”räjäytys” so something about blasting. Most likely a finnish version of fire in the hole.
@@gustavselin1197 Thank man!!!
Love the way they cover the whole thing with a big slab of concrete that they stand under after each explosion
As a Swede this is exactly what I thought the Finish where doing during lockdown
Beautiful comment you got there bud
This is how they got out of lockdown.
Im a dane and I always wanted to try but the law is to strikt
Who else this in a Swedish accent
Do you swedes hear them over there? Here in southern bavaria quite silent. Only the austrians making Blasmusik.
Disclaimer: "These are trained professionals, don't try this yourself"
Trained professionals: "We wrapped some det-cord around a bottle... IDK"
"Prober"
Professionally sketchy
All 'professional' means is you get paid to do something. If someone gives you a penny to throw a FRAG grenade at a fish, technically you are a professional grenade fisherman.
@@Debbiebabe69 trained
At least they didn't use a Pepsi bottle, because that would have been cheating. Trained professionals know these things.
Military: Uses money and time to research how to breach a wall
Some finnish guy: Jerry can and C4
Yeah we use iv bags usually. Water cans are a pain to drag around and people get mad when you blow them up
Correct me if I’m wrong, but didn’t they also coin the term “Molotov Cocktail”? If so they seem to be in the business of improvised explosives
@@spiritus1512 Yes they invented the term "Molotov Cocktail" during the Winter war with the Soviet Union. Molotov who was the head of Soviet Foreign Affairs claimed that they weren't bombing Finnish cities but dropping breadbaskets. SO the Finns nicknamed the bombs Molotov Breadbaskets and nicknamed the Molotov Cocktail to go with the bread. They however did not invent the Molotov Cocktail weapon, just the name.
Yeah, the entire Winter War just proves to make the Soviets look stupid. In very brash words, beaten by civilians with outdated hunting guns.
@Lex Bright Raven It also didn't help that the Soviets just had a purge of their officers so they lost a lot of competent officers. Oh and were using their southern soldiers who weren't used to to the cold because they assumed the northern ones might like the Finns too much.
Seeing you guys go under that concrete ROOF after it taking beating after beating, was like going through a stress simulator.
What I was thinking
Yes!
If you don't live on the edge are you even living?
I feel like Finnish people are the only ones who can literally blow shit up and still give of such a wholesome vibe.
You forgot the Soviets and Russians in general lol
@@observeoutofthebox7806 their a bit too chaotic to be wholesome
Yep
That Thousand years of raping and pillaging got all the aggression out...
@@halogeek6 What? :D
USA government: "and how did you learn to create improvised breach charges?
random citizen now on several watch lists: "the Finnish taught me"
Ohhh we've figured out too
Sup bro. You seen me simping lately
Yep, I’m for sure on a watch list for watching this now.
Shall not be infringed is a fucking joke in today's politics
@@Jessie_Helms
This is nothing. Check out "Tech Ingredients."
"Rick, where'd you get a hand grenade?" "Everyone in Finland has hand grenade."
Amazing
Okay, I am moving to finland
Everyone in Uganda knows Kung fu
This was super entertaining! Love all the one liners! "Everyone in Finland has hand grenade." 😂 "So a bit like Finish pressure washer." 😂
"There is going to be hole, or the wall is extremely clean, two options!"
This guy is comedy gold!
"And when you learn to speak Finnish you will get all the girls."
😅
"This concrete wall may attack at any time, so we must deal with it."
well yea the titans are inside
I mean we would never know when they'll attack, they could even be the Red Spy!
Caves of Qud be like
Seems like how the US sees Middle East
Tear down this wall!
“Don’t try this at home” Yes because I just casually have C4 laying around my house....
Tbh you can get really similar results with supplies from the hardware store and walmart lol
@@destinytroll1374 how
@@collinspittle6886 a good VPN and a private browser helps. :D
@@collinspittle6886 not today Mr. ATF man
Or, if you live in a state where it is legal...you can go to Walmart mart and buy tannerite. If you want it cheaper you can buy ammonium nitrate and aluminum dust, mix it together in a proper ratio, and bam! Explosive. Good luck getting the blasting caps though...
I was trained in demolitions 32 years ago in the army. Both my memory and math are rusty, but I believe that the breaching charge formula for TNT is P = R(cubed)KC where P equals pounds of TNT to use, R is the radius (thickness) of the concrete, K is the material factor (reinforced concrete is 1.76 for a foot thick wall and .96 for a two-foot thick wall) and C is the tamping factor.
To breach a fortification that is 1/3 of a meter (1ft) thick with a resulting hole large enough for men to pass through, even though the wall is only a foot thick, you need a hole that has a diameter of about 4ft. so you need to double the R to get a two foot radius around the blast. 2 cubed is 8. As I said, the K factor for more than one foot but less than 3 feet of reinforced concrete is .96 therefore 8 X .96 is 7.68. Now you have to decide on the tamping and placement method. If you're going to place the charge against a flat wall like that, and you hope for a hole that is 4ft. in diameter, you have to place the charge half the radius of the desired breach above the ground at the 2ft. point and then consider the tamping factor. An elevated un-tamped charge for a 1ft. thick reinforced concrete wall is 1.8, so 17.68 X 1.8 tells you that you need a TNT charge of 13.824. You then round that up to the next pound or 14.
So, if you don't intend to tamp it, you need a charge of 14 pounds of TNT elevated at two feet above the wall and placed against the surface of the wall. That's about two regular-sized satchel charges. If it were me, I'd probably split that into two 7 pound charges because I'm only trying to breach 12-inches of concrete. If I place one charge at about 18 inches above the ground and another at 36 inches I should be able to get full penetration and end up with an opening 4ft by 4ft.
Then, once you've breached the wall, you have to deal with the rebar, because the TNT will not defeat the rebar. At that point, it would be necessary to use either a metal-cutting torch or metal-cutting charges on any rebar within a 270 degree arc of that circle in order to be able to bend the rebar out of the hole so one can pass through.
Don't try this at home. In fact, don't try this at all unless/until you check those figures with a demo expert, because my demo math skills are 32 years rusty and I personally wouldn't trust them without having them confirmed by another demo guy.
What's your take on their placing the shaped charge directly against the wall?
This was... *Very informative.*
Sounds about right to me
Id say use more, but my demolition experience is limited to things that arent appropriate for scouts to do...
Mike don't spoil it
These Finns are hilarious!! With what little demolitions training I received in the infantry, I think the results were pretty much as expected. Another thing I’ve learned is that we have a lot of Finns here in Northern Ontario and, for some strange reason, their accents are more understandable in a sauna.
I like how they just casually make and use I.E.Ds
Finland, the land of No Fucks
Well how else do you think they fought off the Russians back in 39
for science or something
This "improvisation" is an application adapted for a purpose, a tool designed to do a job. In a controlled test environment.
It's not a synonym for crime and terror.
@@pwnmeisterage You do realise I.E.D stands for improvised explosive device which was exactly what they used in this video
"there is going to be hole, or wall is going to be extremely clean" lost it. Entire video worth it.
If I didn't see it on camera, I wouldn't believe that 3 unrelated Fins would stand this close to each other
Who says they are unrelated?...😬
@@Ryarios lulz
Because the COV-19 regulations every Finn has to stand closer to each others than normally they would.... They must hope that regulations end and they can return back to further distance than 2 meters.
Forgive my ignorance but is this a cultural joke about Finnish people I’m too American to understand or are you referring to covid?
@@koolkiller35 about a joke is that the Finnish doesn't like social interaction pretty much they are the introverts of Europe haha
Reinforced concrete is amazing stuff... I had a structural engineer once tell me that, given the advancements in earthquake-frequented zones over the past century and a half, we can expect some of our skyscrapers to last thousands of years before weather wears them down. Here's an example of why.
“How much explosives are required to blow through a concrete wall?”
*Stands behind concrete wall*
There’s an alternate reality where instead they stood behind the wall they were trying to break through
@@dinosaurus1172 **Stood**
@@dinosaurus1172 ... only Willey Coyote makes that mistake!
Inverse square law, have you heard of it?
Bank of Finland is robbed.
Police: all we found was hydraulic oil
Idk, you'd think spraying oil everywhere would make for some serious comedy watching people trying to move around grabbing the loot...
2 kilograms of c4 later: "Concrete is really hard." Glad we got that cleared up.
LMAOOOOOOOOOOOOOOOOO
And thats true
Some things have to be verified in all earnest??? 🙂
Indeed. Else it becomes one of those generally acknowledged beliefs without anyone actually knowing the truth of it.
@@michaelstramm2366 In the interest of the scientific method, I suggest further testing.
There is a term for the effect of the shaped charge. When the explosive causes almost no damage to the surface it touches, but sends shockwaves through the material and causes shrapnel on the other side is known as "spalling".
Its not shaped charges that do that, its HESH munitions with HESH standing for High Explosive Squash Head.
@@InsufficientGravitas yup good 'ol hesh
@@InsufficientGravitas and yet here we saw a poor shape charge spall... Even kinetic rounds can cause spalling, its not just hesh
@@noncog1 Yeah, but they cause spalling as they pass through, for the most part at least, and the specific mechanism described was of HESH. Neither Heat not AP shells are focused on or really able to create spall in that manner.
@@InsufficientGravitas kinetic shells absolutely can cause meaningful spalling, which contributed to the understanding of such effect and led to the development of hesh. Kinetic round spalling was a real and impactful aspect of armored fighting in the pre-modern era. The first rounds used specifically with spalling being intended were kinetic rounds not capable of a meaningful complete penetration, spall lining was used before hesh.
"Everyone in Finland have hand grenade."
"Yeah, they sell these in grocery stores."
OK, UA-cam algorithm, I'll watch this...
When the pandemic is over, I have to go to Helsinki to buy a rocket launcher at Finnish Lidl. They are much cheaper in Finland than in Sweden.
@@Soundbrigade or go to Russia to buy RPG-28. RPG-28 tandem warhead went thru 0.9 meter of steel and reinforced concrete.
ua-cam.com/video/LGNZiKndJe8/v-deo.html
ua-cam.com/video/m-zqsxeK5jQ/v-deo.html
Well they sell the C4, you need to get the rest
*Visible concern.*
@@West_Coast_Mainline So is the C4 sold by weight? Or is it pre-packaged?
Puts a directed charge on a bottle of water, calls it "Finnish pressure washer" LOL
Not to mention naming his incredibly effective breaching tool the "Wet Fart"
The effect where the back side of the concrete breaks and flies off even though there's no hole is called "spalling". It's caused by pressure waves inside the concrete bouncing around and interacting; when two waves meet in the right way, it creates an area where the concrete is "stretched" further than it can withstand, causing fragmentation of the material.
An interesting related fact is that the spalling effect is a consideration in the design of armor for tanks and other vehicles. Incomplete penetrations and explosions can cause spalling on the other side the the armor, creating a shotgun-like blast that can injure personnel and damage equipment. In fact, there are munitions created specifically to take advantage of spalling! Because of this, many armored vehicles have layers of material such as Kevlar lining the inside of the armor, in order to catch the spall fragments.
ah yes, HESH or High-Explosive Squash Head, basically it's a very thin-walled shell filled with C4 or other kind of explosive something, range doesn't matter, just let it stick and boom, done.
That’s really interesting, thanks for sharing that!
@@chiisan3776 *flashbacks to the FV4005 in war thunder*
@@packetdrinks9215 I was waiting for the War Thunder comment lol
Oooh, that's very interesting. The more you know.
I was once privileged to observe the demolition of a thin (5" thick) concrete bridge deck slab, from a damaged bridge with a washed-out abutment. The slab had so much reinforcing in it that, even though it had a 45-degree twist along its length, there were no visible cracks. The thinner the slab the more difficult it is, because the blast just blows a hole and escapes into thin air. The contractor had a free supply of time-expired Anzomex boosters (TNT + PETN). These were maybe an inch and a half diameter and a couple of inches long. So he drilled strings of holes about 4" centres, inserted and fired the charges, and it cut the slab into neat six-foot squares of concrete joined by the reinforcing which he then cut with a gas axe. Notably, the steel reinforcing wasn't damaged by the blast at all, though the concrete was neatly removed from around and between it.
" The slab had so much reinforcing in it that, even though it had a 45-degree twist along its length, there were no visible cracks. " hehe, the amount of false/wrong informations under this video is just impresive...
Or did you simply forgot to put your glasses on your nose that day?(because that is the only logical explanation of your story...).
@@Bialy_1 I said, "no visible cracks". That was based on standing at one end and looking. This was a ~30-foot long single-lane bridge deck slab on a back road. And I did find the absence of obvious cracks quite remarkable.
I'm pretty sure that if I'd got down on my knees and examined it closely, there would have been microcracks all over it - which is why there weren't any obvious big cracks. And there was nothing wrong with my eyesight.
Evidently I should have been more careful to measure and record things precisely at the time and specify carefully the limitations of my observation in a UA-cam comments section. (Yeah that was sarcasm).
@@Bialy_1 imagine unironically saying hehe
"there's two schools of thought, internet and actual knowledge of explosives"
i already know i'll love this
they make it seem much easier in the movies
maybe becasue movies are not real
You're literally in the comments of every video I come across. Why?
i think you just watch too many movies
Lol how did you get here
@@jacobsanders4254 lol same
Most people: "Using multiple explosives on the same wall doesn't give an accurate test."
Me: : "Ha Ha Things Go BOOM!"
I didn't come here for science, I cam for SCIENCE!
@@hmdragon1638 ew
Best way to enjoy the morning. Cup of coffee at the gun range with the smell of spent round while watching videos of things blowing up.
Concrete is really good at taking pressure, but pretty weak against being ripped apart, that's why the inner side takes little damage (compression) and the outer side rips away
When you hear the accent, you somehow instantly believe that everything was safe
Not really.
@@12b_engineer exactly
Indeed.
The only dangerous thing for them is US propaganda.
@@fendysusanto876 God dam you took the short buss here didn't you ya bigot.
I just know that someone going to sneeze explosion
There's actually a breaching charge designed to break through solid concrete walls, it's called the concrete charge (duh) the hard part is dealing with rebar reinforcement because the c-4 shatters the concrete and makes it crack, but it also keeps the c-4 away from the steel bars. To blow through steel the c-4 needs to be in direct contact with the steel to cut it. So reinforced concrete walls are hard to blow a hole through because the rebar reinforcement will still be untouched
All about the rebar 💪
@@jshaw4757 for real though it's just mild dirt steel but its such a problem to explosive breaching
@@andrewhallard537 I never thought such a universal method in concrete making could hinder a high explosive
@@manny4707 yeah but it makes sense, rebar is mild steel which takes a considerably higher pressure to cut it with explosives. While concrete cracks pretty easily
I wonder if you could just use four linear shaped charges to make a square hole.
I imagine the size of the charges required to make it through in one go would be ridiculous.
the best part of the hydraulic press will always be the finglish. If you see 4 errors in one sentence, you feel like you are with experts!
I couldn't agree more. The finglish is a big part of what makes these videos so good.
@@lachlanhatcher9108 I love nothing more than to boast about how much Finnish I've recently learned before quoting some quality phrase like 'WAT DA HUELL?' xD
@@HavokTheorem Pay attention to the guy shouting the warnings before bang. Note how he says the word "kolme" as very pronounced "koloome". That guys is from Ostrobothnia.... for sure. Not that it helps you with anything, it is just very, very funny to a Finn.. And i'm also from Ostrobothnia, that is the way i say it too.. but it is always funny to hear it that strong.
When I travelled to Finland I was so grateful everyone I met spoke some English. All of my colleagues from Finland were fluent, even more so than the guys and gals on this channel.
@@wcg66 In Western and Southern part of Finland, almost all born after early 1970s are required to be able to understand and speak conversational English (in addition to Finnish and Swedish), but closer to Russian border, there is still people who don't understand English... My mother is from South-East Finland and she was quite old when she did learn to understand and speak English.
The damage on the other side of the concrete wall is from what is called spalling, and it works exactly the way you describe. That's actually why tanks have anti-spalling fabric on the inside of the armor; early anti-tank weaponry caused most of its blast-only damage that way.
That type of damage is called spalling(and not the cause of it) and in this case it is so significant becaue concrete is an anisotropic material(contrary to for example armor plate on a tank...).
Dont use explosives at home... duh.. go to a friends house.
Someone in our neighborhood seems to be practicing this at home.
Or Finland.
@@UncleKennysPlace I heard from a friend of a friend it can get to being quite addictive.
If something explodes in your backyard in the middle of the night, don't be the only house that doesn't turn their lights on.
No, you go to grandmas. She is deaf anyway.
Finland: Everyone has a hand grenade at home.
Russia: not going to lose again.
Hahaha! Fukkin PERKEELLLLEEEEEEEE!!!!!!!!!!
Mannerheim held the line, I have mad respect for the Finns. Russia could not push that line
never underestimate saunas in the middle of nowhere in a stupid cold climate......at least the fins fixed the russians rifles after they pried them from the fingers of the frozen corpses....
The fun thing is that Finland actually got a lot of the crazy ideas from former Soviet Union countries, including Russia and Estonia... Finns are known to be quite crazy and less careful than other tribes. Hand, leg and eye injuries are quite common in Finland.
@@genghischuan4886 Soviets got just enough land from Finland to bury their soldiers..
“How do I break concrete?”
Google: use a jack hammer or similar construction tools
Bing:
Bing: Become Finnish and have fun
Bada Bing Bada Boom
And 3liters of water
@@xBrabus76 *litres
@@johngonzalez3634 liter is the American spelling.
Great video. I learnt a lot about explosives, walls and pressure washing. It was a pleasure to watch.
Don’t forget about wet farts
Explosives specialists: explosives are dangerous. Don't do this at home.
Random guy with a pound of tannerite: *giggles*
The fact that reading this made me giggle....
I imagine it's Nick Offerman with his trademark giggle.
@@vladimirputin920 ...is sound proof that you have a healthy relationship with things that go boom.
This is why the Finish are the happiest people in the world for the fourth year in a row.
Also free education, free healthcare, police require education, 12% gun ownership (and dropping every year), minimum wage is livable, incarceration is more like therapy and rehabilitation, education standards are high, good trade so cost of most products are low, they have exceeded their target for the share of renewable energy (ne of the highest figures among all industrialized nations and the third highest in the EU), good social aptitude (kids learn good communication skills in school), no religious extremists, politics are very transparent, corruption is actually enforced, banks are held accountable, the wealthy pay taxes and are enforced, and of course it's absolutely beautiful land that doesn't have large corporate interests trying to rape it for it's natural resources and destroying ecosystems/environments.
Most countries have a very long way to go to even begin to be a great enough place to live like Finland has it. While some countries education standards are so low (**cough** USA **cough**) that even mentioning any of the above will be written off as "socialism is bad".
@@sqlevolicious im not reading all of that
@@Crazyclay78YT you must be from the USA
@@lewisheasman lmao yeah. how did you guess? the amount of laziness?
@@Crazyclay78YT yeah mate. Dunno why I said that though. Probably pissed lol
One of the funniest and most entertaining videos on youtube.
As an ex Royal Engineer, pretty well versed in improvising various explosive devices, I knew the water contained charge would work, water is very good at containing and directing explosive force and this is a well used technique for increasing the power of a charge, either for breaching or for example, demolishing a bridge.
Even the water bottle one would have done more damage if the charge had been against the wall with the bottle behind it, rather than having the water protecting the wall, directing the charge away from the wall.
The water jug charge reminded me of the petard bombs used for wall and gate breaching during the medieval era.
Even though the petards used packed gunpowder instead of high explosives would the way they did damage to a wall be the same as the jug charge in the video?
Thank you for explaining that. With the incredibly thick accents I couldn't understand 90% of what these peeps were saying, and I had no idea what the point was of using the water-filled jerry can. I'd like to know more about the physics behind this. I also did not understand the attempts before and after the water can.
@@peedee4065 Then what exactly DO you understand about ANYTHING ?
@@paulanthonybridge5741 Enough to be able to articulate myself. Lol, wanna give it a try? Tell me what they're doing at 3:55, and also at 10:24.
@@peedee4065 the explosive compresses the metal and accelerates it immensly, if well arranged a shaped charge creates a plasma beam, that cuts through almost everything.
"or the wall is going to be really clean" you got jokes for days, I love y'all's sense of humor thank you for bringing some smiles into my day.
I have no idea why yt recommended this but my monkey brain enjoyed the explosion
Agree
Same
Me too
Im here too and my best and only guess is that we both like the wintergaten marble machine stuff, which is finnish, and the algorithm somehow figured maybe people who like one finnish channel might also like other finnish channels regardless of the content.
@@xtreemgamer129 nah, i like boom boom
I feel like that first explosion was a good demonstration of how a grenade would disperse its energy when tossed into like a bunker or trench, those things really pack a bigger punch than they make them out to.
yea the movies don't do them justice. First thing to my mind was "yea you're dead.. if you was under that roof, you are dead..". Honestly the grenade and the waterjug at the end were the two scariest ones..
Grenades are scary bc they send out shrapnel which acts like bullets when they hit you
@@Epic_747 some are, some act as concussion, the new US army nade can somehow magically act as both
Ok, I have to throw my hat in here, and I know these comments are sort of old, but I feel the need to shed some light. An M67 grenade will without a doubt be able punch holes in you with shrapnel up to about 10 meters/yards. It only creates a certain amount of shrapnel though so the further you get from the explosion the better chance you have. If you are within a bunker, no chance without a miracle. Now as to the concussion, each and every explosion has a wave concussion, the force of the explosion determines the shockwave output. There is no magic involved. As far as movies doing them justice, no movies make them look way stronger than they really are. The mechanics of breaching a wall are a lot more simple than this video makes them out to be. The explosion sends out the shockwave in an orb, just like blowing a bubble, and it will follow the path of least resistance if there is an obstruction. It's as simple as making the concrete wall the path of least resistance. I will just let you ponder that for yourself.
Figured I'd chime in here too because Hollywood grenades peeve me. I have trained with M67 hand grenades. Thrown plenty. Trained Soldiers to use them. They are not that impressive. They will not flip a car. They will not obliterate a building. Their purpose is anti-personnel fragmentation, not explosive force.
For those interested, I am sure grenade range training videos are posted.... Small boom, alot of small holes.
"We have two schools of thought: Lauri with the Internet, and Henri with the knowledge of explosives."
And we, the audience, have another fine example of priceless Finnish deadpan humour.
the soothing and relaxing accent they have have forced me to add this to my asmr playlist.
The "wet fart" was basically a HESH charge, which is very effective against brittle substances like concrete. Also, the liner in those shaped charges was a large piece of steel, which may be too thick. Something thinner (1-2mm) would require much less energy to vaporize. Nice video! Crazy Finns as usual
wouldn't copper be better
@@ieuanhunt552 any soft metal I believe, since it behaves as a liquid when it is solid when used in this way and thus softer would be easier to deform into a jet as opposed to using something like mild steel.
@@tatotaytoman5934 You have 5 likes for comment that is so wrong... heh
Steel and copper are both ok and both aren't "soft metal".
Pyramids were build with copper chisels... copper in shaped charges generaly is giving extra 10% of penetration but it is much more expensive that is why older Soviet tank HEAT projectiles were made with steel liner.
Also mild steel is soft type of steel->low % of carbon...
And the metal hardness is irrelevant, that is why lead is not used as it is soft and in the same time much denser than steel or copper so lead should be perfect according to your theory.
The parameter that is the key is speed of sound... you need to exceed the speed of sound in your metal with the speed of the shockwave created by your kaboom material.
@@Bialy_1 Actually unironically said "heh" in the internet argument, clearly a terminally online Redditor.
🅱️ESH
“There is either going to be hole, or the vall is going to be a really clean.” LOL
His deadpan delivery of that joke made me realize what he said 2 seconds later and I just cracked up.
It was interesting to see the spalling on the backside of the wall for the charges that didn't penetrate. This is why tanks have a spall liner on the inside of the tank, to prevent the tank to turn into a hand grenade even when the tank havent been properly penetrated
The water jug was basically a HESH round.
@McFlickers but...different concept entirely so...
The speed of sound in and elasticity of the material may play a big part in reducing spalling, as well as the tensile strength. A lot of buildings have a damper layer on the backside of the solid mass of rock like polyurea, with a catchers mitt like kevlar bolted around the edges.
@@PatGilliland the one with c4 and metal pipe was also a shaped charge. they should have used copper though. it has a lower metling point but i had expected it to go through the wall like a heat charge and not a heshcharger. im not an expert like you guys but i thought it was pretty interesting
The one with the water jug wasnt a hesh charge I bilieve. They placed the water jug behind the c4 to direct the blast into the concrete.
this is a really nice showcase of why rebar is so important for concrete. If it wasn't reinforced the jerry can would make a hole like in movies
My dad is a retired miner and he said back in the day they just guesstimated the amount of explosives for a job and dudes would come into work drunk all the time. Fucking crazy times LOL
As a polish miner i can say not much has changed
@@damianbisha6712 well they did in Canada at least LOL
@@sinephase Then you at least get a sorry after you get your eardrums ruptured from overpressure, not like you gonna hear it but still nice
@@damianbisha6712 o kurwa....
If you don't use enough,you get to blow stuff up again
If you use too much,it's not your problem anymore
Everyone: No the water jug and C4 isn't not going to work.
Lauri: I reject your reality and substitute my own.
Am I missing an eyebrow
Love the Mythbusters reference. Lol. They essentially made a water charge. Ive seen one in Iraq blow through a bank vault thick steel door. It was like 20 zip zags of det. Cord and 3 saline bags. Hole large enough for a hand grenade to clear it out. Lol. Then we had engineers come clear the rest of the door
@@hanksadventures4132 Why bother clearing it at all ? just weld the door shut :P
That double negative makes it were they all thought it would work
Water is a nearly non compressable liquit.
Air on the other hand can be compressed quite well, since it is a gas (think aboout air cannisters for divers ).
Therefore placing a layer of water (in form of the water filled jerry can) above the C4 channels the energy of the explosion towards the wall. If it wasnt for the water all the exothermic reaction energy would just expand into the air, and therfore being useless.
The water blocks that direction, so the hot gases can only expant thrpugh the wall...
“I use a water bottle, not a pepsi bottle, that would have been cheating” because of things like these i love Lauri and Anni
I laughed at the Finnish pressure washer joke, but I do not understand the pepsi bottle joke?
During the first explosion with the handgrenade it really puts into perspective how much punch such a small object can deal, I mean it isnt any larger than an apple but it would still wipe an enemy-infested room clean in under a second.
Now my next question is why I cant just get a block of C4 in sweden... for uhhh... "research purposes"
Americans watching this while he says stuff in inches: I see nothing wrong
Metric country people knowing Finland is metric: _wat the fook_
Canada, where metric and imperial is taught and tape measures have Inches and cm: I see nothing wrong.
@@zxcvbnmasdfghjkl51 Likewise Brits.
Working in manufacturing and machining you use both often. Prefer using inches when machining.
@@zxcvbnmasdfghjkl51 we do that in the US too. It seems to me more countries have hybrid measurement systems than the jokes and stereotypes make it seem.
Construction tends to imperial like a bad habit
UA-cam:
You want to see some Finns trying to blow up a wall?
Yes.
How original.
Yes of course
Absofuckinglutely
Well, that's the easiest question they can ask. Of-bloody-course!!!!
These videos fill the hole that was left in my heart after Mythbusters ended
Damn, I miss that show
The water will penetrate due to the fact water cannot be compressed. So, you will be moving the solid water mass totally through the concrete, even though it's reinforced with steel rod support. Great shots of all your explosives used.
As an EOD tech and a former combat engineer I like these guys :)
haha, love your username
" An ordnance technician at a dead run outranks everybody." - Maxim #3
Words to live by.
Well said my friend. If you see me running...try to keep up!
I miss the updates...
but can't wait to see what he does next.
lol. Nice...
However far away EOD is from a blast, double it.
you can tell they know what they’re doing by the hard hats, safety glasses and accents
The dent you made in the water jug was VERY important because it shaped the energy. Without the dent, much more of the energy would have dissipated perpendicular to the direction of penetration.
And this kids is why throwing grenades at tanks in battlefield doesn't do much lol.
While that may be ineffective bum rushing them with c-4 does tends to provide better results
@@johnb3587 C-4? you mean jeep stuff right? I'm pretty sure you mean jeep stuff, yeah jeep stuff is awesome huh :D
Bum rush em with a lunge min after two shots from a m1a1 bazooka if that doesn’t kill it I’ll be amazed
Grenades don’t do much to tanks because it just shoots out a bunch of fragmentation shards, i.e. the “Frag Grenade” moniker
@@justiceofbook picks up anti tank bundle grenade
Asking the internet if they would like to see more explosions.......
What a silly question.
Of course we want to See explosions
Keep in mind there's no more mith busters ☹️
That was a fantastic video! You should've have a full size mannequin on the opposite side of the wall. :-)
@Alexander Franke Along with many others.
@Alexander Franke Or all of the Republican insurrectionists.
@@mnealbarrett the ending of humen lives is not funny. Just stop
This thread got political quite quickly...
@@Actvontact ok boomer
It'd be more expensive but you should really do each test on a fresh wall because each explosion causes stress cracks so it gets weaker after each test. but still cool watching it :D
Didn't think a video about blowing holes in walls would be so wholesome but these guys are really nice, friendly and funny :)
How can it not be “wholesome” just bc they have accents didn’t make them wholesome
@@bigdogteigan1231 Did I say it was because of the accents? They just seem like cool, friendly people that's all.
Love the mix of measurements here.
Explosives measured out in grams and kilos, and the depth of the holes it made quoted in inches.
Something for everyone. :-)
Ngl that's how I measure things.
"it's kinda like Finnish pressure washer. " I threw myself away at that one
Timestamp?
@@Captain_Leafy it's during the red 2L water bottle
@@Captain_Leafy It's at 5:35. And then he said "either there is going to be a hole, or the wall is going to be extremely clean." I lost it.
I'm glad to see you put up an overhanging slab of concrete, that's very smart and safety conscious of you.
THis is awesome! Also, I should say, your design of the water jug with the C4 on it is . . . *similar* to a late medieval breaching charge called a *petard*, which was basically an iron cauldron packed with black powder, and bolted to a thin piece of wood.
A soldier chosen to carry the weapon, called a 'petardier' would carry it up to the heavy wooden gates of a castle or walled city, lean it or prop it against the surface and light the fuse, then attempt to run in his overthick armor (meant to protect him from missile fire from the walls . . . mostly) back to his own men before the charge went off.
However, at the time, they lacked a proper understanding of how to make and use timed fuses, so the petards often had a tendency to detonate early, killing the petardier. This is where the phrase "Hoisted by your own Petard" came from. ;)
in modern times that kind of technique would be advertised as "life-long jobs available, with immediate chances for upward mobility" (well and sideways, and generally scattered in every direction)
"For 'tis the sport to have the engineer hoist with his own petard; and 't shall go hard, but I will delve one yard below their mines, and blow them at the moon."
In LOTR "Two Towers" movie, I feel like this is the idea behind the orc running in to light the powder kegs under the wall of Helm's Deep
@@wombataldebaran9686 HA!
@@kaizen5023 More than likely, actually!
Nordic UA-cam
One guy explains in finnglish
One guy who isn’t abled to wear a wool cap correctly translates into pidgin english
One girl smiling and giggling
ATF attempts to enter chat: blocked by Nord VPN.
ATF has no jurisdiction in Finland. They're so free, they get grenades!
@@izifailsttv I know they don’t lol, do I have to explain the joke?
@@kylehughes6324 Don't try it buddy, or the dog gets it.
That you actually think Nord, who's been compromised multiple times, makes you somehow immune from state actors.
@@otm646 that you somehow think the ATF can you anything in finland is quite a joke on its own
Gentlemen and lady, many thanks for your time and effort making this video.
This is one seriously sturdy wall! Great advertising for the company.
LOL it kinda is, but... do you think most people building _a frickin fortified bunker_ are even remotely forthcoming with their intentions? I feel like asking "will these walls hold up to, say, the work of a professional explosive teams?" may or may not raise some red flags. But maybe not, for all I know that's a perfectly normal question to ask in Finland!
@@idontwantahandlethough No, it's the other way around. The client asks: "Sure, your walls look nice, but are they stable enough?" And then the company points to this video and the client is more than convinced. 🙂
Ukraine: we will buy several cities worth.
@@trazyntheinfinite9895Yes, Ukraine will need a lot of good building materials and Russians will pay for it.
Steel reinforced concrete is a rather time proven building material.
Came for the explosions, stayed for the ralli-english.
I tried this at home.
Let's just say the landlord is somewhat irate.
...whats left of him you mean 😏🤭
I can’t ruin the 69 likes
I did it at the church
the reason why the last 2 explosive devices went through the wall is: the conrete has microfractures because of the explosions from before. If you would change the order of the explosions, the watertank would not get through the concrete wall.
"there's gonna be a hole, or then the wall is gonna be extremely clean" thanks for delivering that line, it was pure genius xD
"This needs some kind of name."
"He said his name is Kevin. And you better remember it."
Mom: "What am I going to have to do to get through your thick skull?!"
Me:
For anyone wondering,
The reason the explosion isn't huge and slow,
Is because those types of explosions are typically used in movies, for dramatic effect.
Explosions like these, are essentially for military use.
And because of that; require a fast detonation to acquire a fast shockwave.
And the reason is; More damage, etc.
I love this video! The accents, the English, the explosions get bigger and bigger…their enthusiasm, and she nods and grins so enthusiastically! The are just having so much fun! Brilliant!
Don't do this at home
*Gives exact instructions on how to build it*
Well at least they weren't doing at home
If you Can get the C4 that is XD
@@jorgeleiva6067 The formula for C4 can be found on the internet. Trough the wonders of chemistry you can rearrange the atoms in sugar and air into C4 if you wanted.
@@jannikheidemann3805 just because they have similar compositions it doesn't mean you can make it from just that. It requires access to a good few solvents and other compounds that may or may not be controlled substances.
@@jannikheidemann3805 The formula for C4 and formula for being on the FBI's watch list*
I am not surprised that the "wet fart" worked, but I AM surprised that it worked so well. When using liquid pressure wave limiters, vegetable oil is typically much better than water. Still, this proves that water is also viable. It would be interesting to see a comparison.
I'd never heard of this method before. Does the specific speed of sound through the liquid limit the shockwave's propagation in that direction, or what is the working principle?
@@EatRawGarlic I am not qualified to answer - I have only seen it done in practice by professional blasters (I am a special effects pyrotechnician so I never handle C4/dynamex). The two times I have seen it in practice it was done with vegetable oil. But yes, my unqualified guess is that the density of the liquid affects the shockwave's propagation much like you said.
@@EatRawGarlic I could see two effects: 1) The shockwave that goes into the liquid layer will be mostly reflected back towards the wall at the liquid-air interface, because of the large difference in acoustic impedance. 2) The mass of the liquid provides an inertial confinement - it needs some time for it to get moving and the explosion gases to be able to start expanding, so that even though the peak overpressure isn't bigger, it lasts for a longer amount of time.
Water impulse charges have been the standard for a long time in the military. Doesn’t really matter what liquid you use as liquids don’t compress. Plus 5 gallons of water is a lot easier and cheaper. Plus oils are flammable under compression.
If you fill it with gasoline, it’s gonna be amazing!
4:22
The most Finnish laugh in existence.
“Sharpnell” ...as if shrapnel wasn’t terrifying enough😂
Why did I think of a big sharp black dude called Sharpnell?
The Finnish accent makes me feel theyre just fooling arround, but one is actually a profesional and the other 2 were indeed fooling arroud lol
and even Lauri accidentally mentioned "water was more than what the pros use" meaning he is probably a more educated amateur, just playing ignorant for dramatic effect.
I thought the same thing when I started watching the channel but then he started explaining advanced math I hadn’t learned yet in my engineering classes and I realized he’s a professional for real!
This UA-cam channel is very good. The content you produce is very good.
The joy of nerds playing with explosives truly transcends language and cultures.
Craigslist:
Original Perustava concrete element, slightly used for test purposes, almost new, straight from the factory.
Straight from the factory, but now slightly bent.
In Finland, it's in the safety and healthcare regulations that one must destruct one concrete element from each batch for quality control... It's same for any products sold to customers, including food and drinks.
No low ballers, I know what I've got.
funny thing is that wall can still be used as building material if you bend the bars back and repair the holes with fresh concrete.
even with that big hole in it the overall integrety is mostly intact.
"Bit like a Finnish pressure washer" lmaoooo
The audio of the explosion was perfect!!
“General! They have breached the fort using Wet Farts!”
🤣🤣🤣🤣
Underrated comment
Vocabulary and comfort with English are so good now, but that accent ain't never going away. You guys are the best. Still making great content.
The thing with anyone who isn't a native English speaker is that there will be a couple words we will just never get right unless you learned English at a young age but it's still very clear what you're talking about because in this situations where you're misusing these words it's two words with similar definitions but they're used in different contexts so it's clear to the native English speaker what you mean because you can only mean one possible thing. For example I haven't heard you guys make this mistake but I've heard military history visualized make it what he'll be talking about the logistics of something or other and he'll say instead of how much fuel he'll say how many fuel which is technically incorrect but blatantly obvious what you mean.
His vocabulary is absolute garbage. He almost never uses the proper prepositions and skips articles altogether. Just check the title. He's making a statement, not asking a question. If he would like to ask a question it should be "is it" not "it is".
I never would have thought but Finish people have a really contagious laughter and quite a great humor
When I see people blowing the shit out of something for no particular reason I know it's worth a subscription