How a Manhole Cover Became the Fastest Manmade Object Ever
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- Опубліковано 12 чер 2019
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Episode written by Adam Chase
Music by Epidemic Sound
Hey class. I started a podcast so I can fit in in Denver/Brooklyn/San Francisco. It's about really remote places and why and how people actually live in really remote places. The whole first season is about Pitcairn--this tiny island of 50 people in the South Pacific which is technically part of the UK. It's at least 3/4 as interesting. Listen to it at ExtremitiesPodcast.com or on all major podcasting apps... or else.
Half as Interesting, did you forget about Voyager 1?
I love your podcast BTW.
The first object to orbit earth was sputnik, not first in space. That goes to the germans in WWII with there V2 rocket
Or else what? Mutiny?
Just a detail that bother me you wrote km/h ap kph whitch mean absolutely nothing. If you could write it properly from now on it will be great. Cordially, a metric system's user.
Humans: how did you find us!?
Alien: *angrily returning manhole cover and pointing to damage on his ship*
Black turbine unless they have energy shields with many layers that would plow right through em like a knife through butter
@@DarknessXER nope they will probably just whoosh right over it like this joke
@Black turbine Well played mate.
Thats why you need insurance
@@flurry2694 The alien corporation will just chock it up to "an act of god"
I find it hilarious that it is actually possible that a manhole cover left the solar system before Voyager did.
Indeed it is
I wonder if something will find it someday 🤔
Angel probably not, considering the direction it went, if they made the test during the day, it would go towards the sun, suns gravity may have (probably did) changed its direction or maybe it crashed to the sun. Also the atmospheric drag of earth probably slowed it down so much that it couldnt reach escape velocity. But what you said still has a chance.
Angel
Nah, not out of the solar system. It was only going 6x Earths escape velocity, it would follow the earths orbit path around the sun pretty closely, most likely.
Arca İpekyün
It could possibly go toward the sun, but it wouldn’t hit it. The earth is going so fast around the sun that the manhole cover would probably just end up going in an slightly smaller elliptical path around the sun. To actually hit the sun, you need to basically stop all of your velocity around it, and then fall straight into it.
6x earth’s escape velocity
not 6x sun’s escape velocity
What if aliens found it and took it to be some sort of important relic? Imagine they trace it back to it's launch site, land on earth, and ask "Where can we find the Holy City of Neenah, Wisconsin?"
Underrated comment.
Aliens: "What was the first thing to make it off your planet?"
Man: "Accidentally? A circular 4inch thick slab of iron."
Aliens: "Accidentally? The fuck? How do you accidentally make it off your planet?"
Man then grabs a shot glass, bottle of liquor, and says "couldnt let those commies beat us"
Man: "i'm sure your planet also had a madman who accidentally put too much gunpowder into his cannon. Well, pretty much that..."
Santa, god, aliens and all the other fake stuff: WTF was that. lol.
Good ol’ murica science!
This sounds like a HASO post from Tumblr lol.
imagine a space war being started because a random manhole cover smacked into an alien spaceship. now that would be a movie plot.
Arcane Furor
Funny, I was just discussing that possibility.
I'm on it lol
Make this happen call Micheal Bay
Even if it did get out of the atmosphere, and retained escape speed, which it almost certainly didn't since atmospheric drag at mach 150 is a bitch, it would have been heated to a ball of molten iron at least, possibly a puff of gas, which would condense into a random blob of metal. The aliens wouldn't even identify it as an artificially made object as it would be a randomly shaped wad of iron, and there are a lot of randomly shaped wads of iron out there.
@@medexamtoolsdotcom
So no space war?
So the manhole cover was basically a nuclear cannon.
Yes
*bullet
0000000 0000000 ** projectile
Some aliens are gonna find a manhole cover that's covered in radiation in the middle of Bumf$%k nowehere space and they will be so confused.
Monark Roy they could find a satellite and still be confused. It's not like finding human creations is an expected event that happens in space... is it?
Imagine what number of Gs the manhole cover would have experienced, having been accelerated to a speed of 66km/s almost instantaneously. Assuming that it was accelerated to its maximum velocity in only a millisecond, it would have endured a force of 6,720,771 G (6.7 million G). At this rate of acceleration, the 900 kg manhole would have weighed around 6,048,693,900 kg (6 million tons) during acceleration.
Wow that's almost as heavy as your mom
@@maxscott3349 bro was 4 months late and still went for it 😂😂😂😂
And the fact that it was likely accelerated in a time far shorter than a full millisecond is just… insane
So I did some very basic calculations on what the speed of the man whole might have been knowing that the energy produced my the fat man bomb was about 15 kilotons of tnt convert that to lbft of energy and then calculate the weight of the manhole cover and convert that into grains and then put that into a muzzle velocity calculator and it said it was going about 129000 mph but that all depends on how strong the bomb was could have been bigger or smaller than the fatman
aka Gentle Push
I find it hilarious that our top engineers, scientist, and military experts thought it would be able to contain the explosion of a nuclear bomb explosion
I don't think that they did, they just wanted to see what would happen. After all, they did have a camera on the surface
They thought the concrete plug would contain the blast, not the manhole cover. While incorrect, it wasn't an entirely unreasonable assumption. All of the ones after that (of which there have been hundreds) have been so contained.
Imagine if aliens found the manhole cover floating out there, emitting radiation, instead of one of the voyager probes.
lol this made me laugh!
Now that you said, It acctually is more likely that the manhole is find than the voyager, because of the radiation.
@@dinamosflams voyager probes use plutonium radioisotope thermoelectric generators too
Hahaha, I was thinking exactly this 😆
Hendricks M. *Some alien that has seen Chernobyl somehow:* "3.6 Röntgen not great but not terrible."
Engineers: We put our blood, sweat, and tears, as well as our life experience into making this super fast plane.
usa: bro watch what happens when we nuke the shit out of a metal disk
Lmao
Planes aren’t even the fastest thing behind the manhole.
Imagine if the metal disk struck a plane on its way up and just continued going
@@potato1341 Terrorist attacks.
Of course America is the one place where they literally make a Nuclear Gun out of their own land.
Already knew about the manhole cover so the most surprising thing I've learned from this video is that there were 1000 FPS cameras in 1957... just wow! How do you even manage to get something on film with that short of an exposure time?!
1/1000s exposure time is something even good consumer grade analog cameras could do. Apart from that: the brighter the light, the shorter the exposure time. And I'd say they had the bright light thing covered here.
@@jcxz983 Good try but you don't have much of a point. 65 years ago 1/1000s is nothing "even good consumer grade analog cameras could do", and you entirely forget that the higher the light intensity, the easier it can ruin the entire film because the dynamic range of film is crap, so unless you use a lot of different cameras and composit them together, you point your "average consumer grade analog camera" at the flash of a nuke, and you have a ruined film.
@@dmitripogosian5084 There's the physical shutter speed of the camera, which is entirely not the issue, and then there is the film material, which is.
You can't expose your regular run-of-the-mill 400 ISO Kodak to a 1/1000s shutter and expect it to make a picture.
Bright lighting was from the nuke
Bro 1k FPS is not much...
One thing to think about is that the manhole cover was probably warped into a teardrop shape from the friction of it moving through our atmosphere that quickly. So no there isnt a manhole cover flying through space, but the warped piece of metal could be.
NASA: "You're burning."
Manhole Cover: "I ain't got time to burn"
Hahaha😂😂
ain’t nobody got time for dat
@@drater6027 holy shit this is cringe on so many levels
Rose Easton that’s the point lol
@Jacob Bennett pee pee poo poo
When you look at earth patch notes:
- Fixed Manhole cover instantaneously dissapearing
Dont wanna be that guy but "disappearing"
-Fixed Manhole cover glitching out at high velocities and dissapering
@@anduro7448 no thats... Thats worse. How did you spell it wrong after i already spelled it out correctly?!
@@luukvanoijen7082 DIsapreing
@@anduro7448 okay
An interesting thing to have calculated and put in the video is a rough idea of how far away the manhole cover would be today if nothing stopped it’s momentum
Approximately 72 billion miles
@@jacksongerling7900 so then it would be the furthest man made object ever?
Considering it was the first thing shot in to space and did so at all the velocity a nuclear bomb could put it to I kinda thought that was agiven... but yes, assuming it hasn't encountered the sun yet.
@Ravensquote726 You clearly haven't played Kerbal Space Program lmao
This is the most treasured item in an alien museum
Imagine in like 100 years, humans are in the first interstellar space travel mission and then they just get hit by a middle disc from the 1950s.
First time I've seen someone misspell metal as middle. Wow.
If we believe that our galaxy can't make things orbit around it, then no way can that happen
@@Etelvinicius I have seen someone misspell "his" as "hease". *Everything is possible.*
@@Etelvinicius i misspelled normal as bornak
@@ducksongfans That's not normal...
Imagine some alien spaceship getting a manhole armor piercings round through its hull
This is the exact reason why extraterrestrial life has yet to be found by inferior earthlings... 😏 They ran for cover immediately, once they realized that they were out gunned by the weird blue planet 🌏
Furthermore, we unwillingly gave them multiple decades of head start... We'll not catch up with them for a good while 😅
@@allan3908 I mean, they could've used the manhole cover as cover
"Report 274 : Humans have started to create weapons that could end up troublesome if used on us, they have tested the weapons a couple of times... They just tested the weapon again but underground this time... HOLY SHIT WHAT IS TH- *gets impaled by thicc iron Boi*"
Wtf did you say I couldn't understand a thing
@@HandledToaster2 he meant imagine if the manhole cover went through a alien spaceship he just used a lot of fancy words making it confusing.
Imagine the embarrassment factor, when, from a manned space station, the guys at mission control get a message: "uhh, we've just encountered a hull-breach, appears to be from a man-hole cover!"
Good news, you now have a free manhole cover to patch it up.
@@nolananderson4782 Good idea!👍✌
a half oz piece of debris travelling at 15,000mph will leave a foot wide, 5 inch deep crater in a solid chunk of aluminum...
now imagine what a 250lb manhole cover travelling at 100,000+mph would do...
there would be no more space station, just a cloud of dust where it used to be...
by far my new favorite fun fact is that the first object launched into space is unknown, because it may have been a 4" thick manhole cover launched at 125,000 mph by a nuclear bomb test.
so thank you for that information!
The Nazi’s V2 rocket is actually the first thing launched into space.
Why make railguns and laser guns when you can just make a "nuclear bomb-powered manhole launcher"?
NBPML is the future
NBPML is the name of my band
@@thecosmickitten4452 NPML
ICBMs? No
B2-Spirits? No
Manholes? Yes
It's called theft Project Orion.
This sounds like a great idea for a fallout mod.
"Hey, I'm a nuclear researcher and this is a nuke in a sewer, AND THIS IS JACKASS!!"
TheRossionFan lmao I wanna see that
🤣🤣😂😂
Ten ten ten den den.... den den den TUM TUM TUM
Now wait a minu- KABLAAAAAAAM
They would have said and this is Chernobyl Sewer!
I'm guessing it would have very quickly burned up in the atmosphere due to friction, but it's fun to think that somewhere out in space, a tiny puck of frozen iron that used to be a manhole cover might be whizzing away from us into deep space.
At 125k miles an hour, that manhole cover would have reached space in nearly 2.5 seconds... even if it lost some speed, there's no way it didn't make it to space.
The compression heat was extremely high. Many people, including Dr Brownlee who calculated the speed of the manhole, don't believe it made it to space.
@@Li-Nuss people theorize the manhole cover was so fast it had no time to burn
*Elon* : I launched a car into space
*US military* : Hold my manhole cover
@Mass Debater dont spoil his fun st00pid
UA-cam comments suck
@Mass Debater Your deadness sucks. Like what is dead meme? It has no meaning defined.
*more like:
*Soviet Space Program: in 1957*:
We launching Sputnik-1 into space!
*US Military*: Hold my manhole cover
The manhole cover shoots into space at 6x of the escape velocity and no knows where it is
All these jokes are so wrong... if someone was holding our manhole cover we'd know where it is :P My terrible jokes are at least on par with HAI... maybe worse!
World speed record cars: A B C D E F G H I J K
Manhole: L M N O P
Saturn 12 underrated comment
When I was a little kid I always said “... H I J K Elmo Pee Q R S...” instead of the correct letters because I thought the alphabet was intentionally written to sound like that.
*ELEMENOPEE*
Introducing a new format I see
yes
It would be fun to credit the foundry that made the manhole cover with being the first with an object in space.
That rocket car... They deliberately capped it at 763 because 767 is the sound barrier and WHO KNOWS what would happen if you break the sound barrier on wheels!?
Year 2550; A manhole crashes onto unknown land, right into an alien school, leading to the first galactic war in our galaxy.
oomf
Lol
That manhole doesn't dismiss you, I do.
Sounds familiar... Is this reminiscent of the Chinese rocket booster that almost fell on a school?
@@OwnedBucketTheBucketMan No absolutely not, I wasn't even avare of this story, i don't intend to introduce political quarrels in my youtube comments.
"did math thing"
*video shows 1+1=2 *
dy/dx + dt
Hey, it's still math
Uhh, tHaT pErsOn iS WrOng, ThE aNswEr iS tHrEe. ObViOusLy
Actually, if you add another 1 to 1, it becomes 11
lol
This actually came up on my live stream a few weeks ago. We have a member of the panel who is retired NASA with astronomy and orbital mechanics degrees. They did the math stuff and we came to two possible outcomes. First it is still in solar system somewhere in the Ort Cloud or burned up in the sun. It all depends on time of "Launch".
Keep in mind, if they used the speed that was just the minimum speed. It would most likely be travelling faster then calculated
Depends on which way earth was turned during time of day and where it was in its orbit
My hand was the fastest object to click away after hearing your ad
Are we going to talk about how they only estimated the MINIMUM possible speed it was going?
well its because there was not enough frames.
@@geraskatinas1846 until we do it again to prove that the us Sent the first thing into space
@@wolfsden6479 why does that matter
@@geraskatinas1846 if you have to ask you don't get it
@@wolfsden6479 you didnt explain??
Just curious: how does nearly instantly being accelerated to six times Earth's escape velocity not turn the manhole cover to a spray of dust?
It probably did turn into dust
m a g i c
@Aelerity It would vaporize which could be considered really fine dust.
Also, the gaz that pushed it must have been extremely hot
Because its steel baby 💪
This hits another planet eventually and completely destroys it. Starts intergalactic war.
Most interesting thing about this whole man-hole cover bit, is that it's probably our only real "defense" against E.T.. A bunch of holes in the ground with nukes at the bottom blasting disks of metal into the ether.
If they could figure out how to aim them, it would definitely rain hell on E.T.
Missiles can reach outside the atmosphere with the added benefit of actually being able to reliably hit a target. Just add a stage or two and said missiles can go orbital.
Nuclear explosions (which are likely to be used by us as they give the most damage per payload mass) are a lot less destructive in a vacuum than in atmosphere, however nuke propelled “shrapnel” (basically just the manhole cover but the explosion happens in space) fired by these missiles seems like a more plausible alternative.
an Excalibur shell but made around a manhole cover.
Nuclear bomb: *blows up*
Manhole: _I am speed_
Scientists: how fast can a manhole cover go?
Nuke:yes
kachow
hammond you idiot
CLARKSON
What could possibly go wrong with that?
Elon musk: alright I’ve landed on Mars.
Ground control: what do you see
Elon: a man hole cover
That plumber: my child
That child: my plumber.
Child that: plumber my
A hole that's size of man hole cover
Going through mars
My that : plumber child
If the atmosphere "ends" and space begins at 62 miles high, it only took 2 seconds to escape, probably not enough time to melt from the friction of air, and at 6X the velocity to escape, it probably sailed off into space.
Yeah, That's what I think too. How ironic. The fastest thing ever launched into space was the first ever launched into space AND it was unintentional.
It is similar to an iron object entering the atmosphere from above. It just explodes. 55km/s is about 2x faster than typical entry velocity of a meteoroid, and if it immediately finds itself in the densest layer of the atmosphere, the outcome can be only kaboom. It is like hitting a wall. No space travel possible, at least not in one piece. Small "shotgun" debris could still have the escape velocity, though.
@@Edi_J nope. The atmosphere starts out at high density, and gets lower, and it's trajectory is vertical, (leaving earth) objects entering earths atmosphere are travelling anywhere from 11km/sec to 72km/sec, and rarely travel perpendicular to earth's surface, giving them time to go from an extremely cold vacuum enviroment, to super heated (relatively) oxygen rich enviroment (which is why they burn/explode, from heat) The opposite is true when launch from earth, a thick slab of iron is not getting vaporized by a thinning atmosphere in less than two seconds. The air resistance _decreases_ traveling away from earth, and a cold, vacuum stops stuff from burning.
@@Mark017m The V2 was the first thing launched into space, but yeah
@@jamesgeorge4874 I highly doubt it, at the estimated speed, the air in front of the cover is not moving out of the way, it is building up and compressing in front of the cover, once that air has reached is maximum compressibility, it will begin to sheer over the sides into undisturbed air, the amount of kinetic energy being released at the edge would literally turn it to plasma, well in excess of 30,000' Celsius, at those temps, iron doesn't just melt, it evaporates, instantaneously.
One way to analyze the speed of an object moving that fast is to measure the amount of motion blur in the frame, if the detail was visible enough.
Soviet Union: *sends Sputnik to space*
America: *sends Manhole Cover*
Almost the same thing lol
*Take that commies*
*manhole hitting sputnik*
America: *turns earth into gun*
Firs is firs.
Rekted
Meanwhile in another planet:
"We found this round dish with words in a language we don't understand yet. Its made out of iron and it also emits radiation"
The manhole cover would not have been exposed to any radioactive material. The vaporized concrete pushed it out of the way before any fallout could be spread.
@@dannypipewrench533 I'm fairly certain that if the concrete was indeed turned into a gas by the radiation pressure... then that man hole cover got enough neutron and gamma radiation to keep it in active decay for quite some time...
@@andersjjensen First off, I am going to ask you if you know a lot in this field. I am not saying that you do not, and I am not going to ignore your arguments if you are not an expert. But, I would like to know if you are, because then I can save us both some trouble and not make a ridiculously simple argument with my limited knowledge.
With that said, and this may be a false assumption, but I have to believe that vaporized concrete would be an incredibly thick gas, and since it is mostly dirt, rock, and sand, would be a decent, but not total, radiation shield.
@@dannypipewrench533 I am by no means an expert. However, while a 2m concrete plug at the bottom of a, presumably, quite deep well, is obviously going to create a quite dense gas, by atmospheric standards, I don't think it will provide nearly the same radiation protection, once expanded to the available volume, as the concrete plug would in its pre-vaporized form. And 2m of solid concrete is not nearly enough to shield against neutron and gamma radiation from a nuclear detonation, even some distance away. Sure, alpha and beta radiation should get absorbed relatively well. But fast neutrons and gamma rays have pretty potent penetrating powers. Which is why light water reactors, despite operating at (hopefully!) much less peek power than a nuke, use some 15m of water to stop the critters from barbecuing everything in sight.
I'm not saying the man hole cover would literally be glowing in the dark, but I'm 100% that a Geiger counter would sound like static if held next to it :P
@@andersjjensen So, yeah, the neutrons would probably get through just fine. But only they would cause the cover to become radioactive. My question, though, is would the cover emit enough energy to be harmful afterward?
Side note: I went on a tour of Idaho State University, and got to walk up to their nuclear reactor. It was a 5 Watt reactor, and was low enough heat to not have a cooling system. The fuel blocks were one foot wide disks, and the reactor casing was about a yard wide, filled with water. The disks stacked on each other were about six inches tall.
Yeah, duh. They’re tele ports.
It's insane that they were only able to find it in one single frame.
Who will win?
- Billions of dollars invested in sending rockets to space
- One Manholy boi
Sounds Gay but okay
Dead meme
@@shinmon9486 not that there's anything wrong with that
-Billions of dollars invested in sending rockets to space
Or
-Billions of dollars invested in splitting atoms
🤔
@@fakename287 nobody:
US Government: *LETS DO BOTH*
Aliens haven’t made it to earth yet because their ship was totaled by a flying manhole cover in space
Id like to believe a manhole cover has delayed an alien invasion simply because a manhole cover travelling at extreme speeds blew up a mothership.
One small victory for Earth's Space Force.
Because they fear the earth's manhole cover,thinking that it's a superweapon that could pierce a mothership in seconds
they gonna be furious when they arrive
@@engine4628 IF nuclear tests underground with big sewer doorsTM on top don't destroy every big ship they have and all the small ships get sniped
My takeaway from this is that out of all of the scientists who were involved in the project not one of them raised the possibility that the way in which the hole etc was dug would potentially create a "gun barrel". But then again maybe none of them said anything because they knew this would happen.
I think it’s funny to picture the scientist and military personal just standing there looking into the sky wondering if the man hole is going to come back down.
Manhole: I'm the fastest thing ever made!
Helios probe: I'm about to end that *manhole* career.
Underestimated comment
@@jansvasta2146 Underrated*
I see what you did here
This should be on top.
I'm tired of this comment format but this is funny
*NNNNYYYYOOOOM*
(Humans, some day in the future): WTF WAS THAT A MANHOLE COVER?
imagine if you were standing on the manhole cover
@@mclarenmp4-12c8 Probably get turned into a scattering of limbs, organs and red human juice.
TrashDeviant mmmm red human juice
@@gmodiscool14 Yeah, it is one of the better tasting human juices. Not a fan of the yellow or white juices. Green human juice just smells weird. And the purple one doesn't even come from humans.
cow juice keep the cereal up guys!
It's definitely in space somewhere.
They turned the earth into a manhole launching space cannon. That’s epic.
our top-secret alien defense plan in a nutshell.
@@rearspeaker6364 I’m not mad about it
@@DieselHeat1 nor am I---we all good here.
New Sonic movie : "Gotta go fast"
Manhole cover : "I'm gonna end that hedgehog's whole career"
@The_Hinterland EvEry CoMmEnt Is ThIs ForMAt
The_Hinterland tell me about it, also the stupid
Nobody:
Then some stupid shit, it’s so damn annoying. And the hotel: trivago comments are also annoying. Basically UA-cam’s comments are running in an loop
Photon: *laughs in c*
Sonic move at 343 m / s, Manhole cover speed 54000 m/s or 157 x Sonic speed or mark 157 and 0.000179628 C
@@parkiel54 my blood gets boiling hot when i see one of those "ima end their career" comments
Soviet union: we are the first who sent an object to space
Murican mainhole cover: i cant hear you over the sound of my velocity
Considering it’s traveling faster than the speed of sound it would be more like I can’t hear you I’m traveling faster than sound
I believe the german "Aggregat 4 or "V2" rocket was the first man made object in space.
that manhole cover finna be a whole mcu phase 5 movie plot 💀
*voyager one just chilling*
"Hey what's that weird round thi-"
*voyager disconnected*
The fastest thing ever is my ability to make women uncomfortable
Stay strong King. #SexOffenderShuffle
Lmao
The profile pic ok
suicidebywords
I'm uncomfortable already.
You must have a superpower!
So, we propulsed a manhole cover at 200 000 kph ?
Go home humanity, you're drunk
@Landon Lomenick why did they even think to put a manhole cover over the whole too, lol. Doesn't make much sense
That's the minimum speed we launched it. It's far more likely we launched it at much higher speeds to the point it is the fastest thing we've created.
Another argument against burning up in the atmosphere is that the gases pushing the plate were also moving at that speed and even faster, so for the period going through the densest part, the disk was probably not even effected by it.
The plate was no doubt subjected to very similar forces across the entire area, so little or no bending stress would have been felt.
As for melting dron the propelling gases, the plate was five inches thick. The melting point of steel varies with composition, ranging from 1300s to 1500s degrees Celsius. Using 200,000 kph and the Karman Line of 100 km as the "edge" of space, the plate would have passed out of anything resembling atmosphere in less than two seconds. So while a thin layer of the underside may have ablated off, I expect that layer was probably less than a millimeter. This depends on the temperature of the propelling medium, but that was already vaporized concrete, so the temperature would have been largely converted to velocity and pressure. (See the Rocket Equation regarding that conversion.)
So while I know nothing and blather about things I am oretty much ignorant of, I am confident that a nearly perfect steel disk is out there!
While it slowed down some as it left the solar system gravity well, with its initial velocity of about 55.555 km per second. It would pass the geostationary satellites in about 720 seconds.
Disregarding the relatively tiny draf due the gravitational pull of Earth and the Sun, it has by now traveled something like 1.2% of a light year (0.012045 ly). Here's my numbers in case i screwed up:
Km/s * seconds/year * km in one light year * years since 1957.
(200000/3600)*(365.25*24*3600)/9460730000000*(2022−1957)
i really love how dumb this is, the fact that the government put a manhole cover over the literal pinnacle of weapon design and never thought of the consequence
*New Horizons: "We launched a rocket at a velocity of 36,000mph."*
*Nuclear Bomb Researchers: "...hold our Man-hole cover. Well, on second thought, you probably shouldn't."*
well cause rockets are heavy as fuck and a manhole is like not even 10 kilos lmao ofc it'll be faster
*New Horizons again: "How come?"*
*Nuclear Bomb Researchers, again: "Uhh, no reason..."*
@@axlelijah2327 4 INCH (10.16 cm) thick.
Assuming steel's density to be 8000 kg/m^3, pi to be 22/7 and the manhole cover to be 1 meter across:
(22/7)*(1/2)²*(0.1016)*8000~638.63 kg
replicate the experience and put a camera and a test dummy on it (that sound like a episode of mythbuster)
@@reinatr4848 r/theydidthemath
Imagine you're an alien, and You're cruising along in interstellar space with your shields down to conserve power, and suddenly you hear a *_THWAM_* as some piece of space debris was apparently going fast enough to imbed itself in your hull. You go check what it was, and you find a disc covered in alien symbols that was apparently hurtling through space at a good clip.
There's a slight chance that manhole cover is on an alien's wall.
Great storytelling, you should write a book abot that.
Space ship gets a huge hole than man hole is just like: courck
Most things in space are moving much faster than that naturally. 6x the escape velocity of earth is not that fast on a cosmic scale.
Space is 99.999999999999999999999999999999999999999999999999999% empty. It's probs still hurtling in space.
Best Comment
There is over a 99% probability that the plug (the "manhole cover") was converted to plasma in the lower atmosphere in milliseconds.
It could be on a different planet for all we know!
@@Shaggy_Rogers0001 It is indeed possible, however astronomically improbable (no pun intended); slightly less improbable that it is barreling through space in orbit around the galactic core.
Yes, it's possible; we only have one frame of video of the thing, after all! What we do know is: at that speed in the lower atmosphere, it is like plowing through concrete. Two frames after the picture, the plug would incandesce brilliant white hot. The immense friction would instantly cause the plug to rise well beyond 15,000°F; at those temperatures, iron is a plasma.
A few milliseconds later, the plasma ball will have entered the stratosphere. If it survived all the way beyond the exopause into space, it likely did so as plasma and cooled into steel 'dust' (fragments). Even so, the dust would then be spacebound i.e. "flying through space", but not by any means intact.
@@jul1440 I know this is a little off topic, but if that manhole cover were to be caught in the orbit of a black hole, it could be accelerated to the speed of light! Since the energy of a black hole is essentially ♾️
@@Shaggy_Rogers0001 *Near* the speed of light. Particles with mass can never travel at the speed of light. Conversely, massless particles (i.e., light) can never travel at any speed other than the speed of light.
@@jul1440 Need I remind you that the energy and gravitational pull of a black hole is ♾️! That's how much force would be required to accelerate an object to the speed of light!
If that manhole hit you horizontally your body would go like frieza cutting himself in half with death saucer
Not as fast as me going downstairs to the living room when I accidentally connect a UA-cam video to the family TV
This is so relatable
Yes
At least it’s only UA-cam haha
@Bobby Taylor hahah-oh
He was watching planes having sex 😂
Soviet Union: we were the first country to send a man-made object into space
USA: hold my manhole
The V2 of Germany would have been the first in 1944 (Google "first object in space").
"hold my manhole"
ThomasTurner69, that kind of sounds dirty... 😂
@@zandovic It was a sub-orbital flight, the first object in space was Sputnik I
V2 Rocket by Wernher von Braun in 1944 reched 189km high. HaI was wrong
5:27 No, the fastest object in human history is your mouse closing tabs when your parents walk in your room
Currently, the Parker Solar Probe is the fastest man-made object, and much faster than the manhole was, at 364,000 MPH.
He managed to bring planes in. HAI is back.
Where? i didnt see it
Well he is talking about fast things. Now if he was talking about South Korea going silent or something and brought up planes THAT would be crazy!
1:10 and 4:08
That's more of a bendover productions thing
@primeknight
Bendover Productions? Sounds like a company that makes pornos. I assume you mean Wendover Productions.
Me: "I should go to sleep early"
Me at 4AM: Watches how a manhole cover became the fastest manmade object ever
0:30AM. So it begins...
03:40 AM right now. I have a job application in 6 hours ffs but cant sleep :0
Me rn
nah Parker Solar Probe is the fastest m8
It's currently 3:39 and I'm reading a comment about someone who commented this at 4AM, so yeah... Fuck responsibilities.
Fascinating! That thing definitely did not burn up. A meteor that size would easily make it to ground, and they go about the same speed, 130k MPH. They also go on sideways trajectories usually. Another possibility is that the shock later caused it to break apart.
Imagine building cannons like that. Pothole guns.
"First thing in space"
[Sad V2 noises]
Kim Thing it did make i to to space, if only briefly so, NAZI GERMANY IS THE WINNER!
lol i commented the same
Lol yeah
@@nolategame6367 I don't know if Germany did send them to space, but the US captured V2 rockets after the end of the war, and they used them to take the first pictures of Earth from space
@@ludovisuis They did, but didn't take pictures. Proof that the victors write the history books
"You encountered a space travel rival!"
Soviet union: chooses lvl 10 Sputnik!
America: chooses lvl 1 manhole cover
Level isn't everything
It 's about them stats
@@yeetocheeto8102 agreed
I’ve seen you comment before
The germans actually brought the thirst thing into space. The V2 flew in a height that is considered space.
@@yeetocheeto8102 *If only the people from another world get this shit.*
My dad when gas prices drop by 2 cents:
Finally! a worthy opponent!
I probably wouldn't have lost my track meet if I had a nuclear bomb go off right behind me
Aliens: Lets invade this planet, their space artillery isnt advanced yet....wait, whats that metal thingy coming towards us?
the manhole cover just goes through almost all the ships and then the surviving ships pick it up and die from rads
*bonk*
Thats a really low chance
@@blendyboi5023 that would be a r/wroosh but hey i'm not the one understanding that he is joking
The alien a few seconds later "OH SHIT ITS COMING STRAIGHT AT US"
Edit: spelling
Manhole cover: I'm the fastest man made thing
My mom's shoe when I do something wrong: _Hold my flipflop_
*LA CHANCLA*
The fastest manmade object is me when mom orders pizza rolls
SIXAXIS would’ve been better if you said “I’m boutta end this mans whole career”
Brasil stories...
Normie joke.
This video made me feel good about myself because my finger is the fastest thing ever clicking the skillshare link
the real defination of a high powered sniper that can snipe planes
This needs to be re-tried with today's high speed cameras for more accuracy
no!
@@uwuuuuwauwa es.
@@uwuuuuwauwa es.
*Test ban treaties have entered the chat*
B-but it's for science! I wanna make a massive steel bullet go nyoom!
Captain America should've used that manhole cover to defeat Thanos
You commented on every video I watched today.
BTW, I don't get the joke
@@firefish111 holy shit man ... about to comment same ...i watched him today two times already lmao
Just imagine Endgame ending with Thanos getting hit in the face by a manhole cover. Im ded xD
@@nova_vista yeah but Sam should've used it.
Defeating Thanos with a literal nuke-propelled cannon would have been pretty epic to be honest. I imagine him saying his "I am inevitable" line just before being smacked with a chunk of steel moving faster than the Earth's escape velocity.
The escape velocity of the solar system is 16.6 m/sec. This man-hole cover is the first object man put into interstellar space. It isn't quite there yet, but it will get there eventually unless it has the extremely unlikely circumstance to hit something first.
The first background beat is so fire for no reason lol
If people were smart they would capitalize on this and turn this into an actual functioning weapon, just scaled down
Edit: Wait that's literally just a gun
lmao
Literally just a gun
Except we could probably control the blast and finally have a way for nuclear-powered space weapons. I mean come on itd be catastrophic how much shit that manhole cover could do
A nuclear pistol
I think it would be more of a cannon...
Correction: Rule34 artist are actually known to be much faster!
Yes
Are you saying that the artists were created in a lab 😂 lmao
@@haydenchu58 I mean, people are in fact man made
only when coming
Voyager 1 would like to have a word with you
Imagine finding it when you are on a space ship and it just rips it apart
I just hope that manhole cover doesn't hit any aliens somewhere in space and cause them to want to blast us to a pulp.
something hit our ship! what does it say? "Los Vegas sewer system".
Alien Captain: Sir! Our flag ship's Hull has been badly damaged by some kind of high speed moving projectile coming from the planet "Earth"!
Alien Warlord: Could it be? The Humans perfected orbital railgun defense?! Their technological advancements might not be as primitive as we thought...
Alien Captain: Should we continue the invasion?
Alien Warlord: No, call it off. We might've underestimated the Humans and that might just be a warning shot, who knows what they'll unleash.
*Meanwhile on Earth*
Human: Anyone see where that manhole cover flew off to? Hopefully it didn't land on someone's head.
A Helvetica Standard moment
Underrated comment
@@main8824 true
Human: Oh nice a hostile to gun down.
*Earth proceeds to become a minigun and the aliens are brutally taken down by a few metal lids.*
lol
*_Public: How fast did the manhole cover go?_*
*_Scientists: Yes_*
public: How fast did it go? Can you provide footage?
scientists: sur-*[REDACTED]*
USSR: Ha! I launched the first object into space!
US Government: Did you detected a manhole cover, dumb Communist?
USSR: Err... WHAT?!?!
Stupid meme. Fuck outta here
Angel Of Misericordia
Is it better or worse than the
“No one: x
Other person: y” jokes?
@@LiquidSpartan117 *_Be gay in Iran._*
I totally misunderstood this title to me the fastest object man has ever made to be the manhole cover LOL
"This is a bacteria from the manhole cover, over. We are nearing Alpha Centauri and doing well! Mission is success." - I translated the message of the first organism in space.
Nobody:
Skillshare:I’m gonna sponsor this man’s whole career
Lmfao
Dead meme format, pls delet
Abeoth
| Dead meme format, pls delet |*
Shhhhh, dont comment
It broke the time-space continuum and went back to 1947 and crashed on Roswell
Nah it went back in time and wiped out the dinosaurs
That's why we still haven't found the meteor yet
@@dhump132 Went back further, split the Earth and the Moon.
joshua vance i like this best. It didn't actually split them itself it just crashed into an object juuussst hard enough to set the whole thing in motion.
no it actually came back 44 years later and hit the world trade center
Just imagine some alien race just seeing a manhole cover go NEEEOEWM past them
The top speed record now belongs to Parker Solar Probe which touched the Corona of Sun and travelled at a speed of 692,000 km/h (430,000 miles/h) which is 192 km/s (119 miles/s).
I like to imagine there's a manhole cover out there just slicing straight through planets at incredible speeds
"look at that wormhole, check out that blackhole, oh s**t here comes a manhole!"
Plot twist, a suns gravity has sligshot the manhole towards earth
@@LordJoker88 if only we were that lucky
mach 500^10
The most powerful weapon in the universe (that doesn't slightly cheat physics (like kurzgesagt's black hole bomb)): an ordinary manhole cover.
no one:
some metal circle: I'M THE ROCKET MAAAAAAAAN
_wow, you’re use of the no one template was so funny and original, I’m actually on the verge of exhaling in small bursts and Laughing Out Loud, here’s your 1’000 internet points, you absolute comedy genius, funny and the haha is what this comment is._
@@saltysnowboi well, your sarcastic commentary does, indeed, hurt my pitiful, brittle self-esteem and need for validation BUT you did misspell one of the most used and easiest words in English with "you're" instead of "your". The internet rules, hereby, dictate that YOUR argument is invalid.
Jove fuck.
L
@@jove3403 I think the useless nobody template needs to be stopped but you get an exception from that reply. 👏
/summon tmnt
I Think The Heat Generated By The Explosion Would've Melted It, Instantly. Thank You.