400mph Rocket Knife

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  • Опубліковано 30 лис 2022
  • Go to kiwico.com/backyard to get your first month of KiwiCo free!
    Safety Third Podcast - / @safetythird
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  • Наука та технологія

КОМЕНТАРІ • 16 тис.

  • @distracteddingo
    @distracteddingo Рік тому +45347

    This man is determined to get on every scary three letter government agency list, isn't he?

    • @nstar6412
      @nstar6412 Рік тому +2018

      Honestly, respect

    • @Elepski
      @Elepski Рік тому +2437

      He's on thier speed dial. And they don't even need Google maps when they visit now.

    • @christosdeschaine9444
      @christosdeschaine9444 Рік тому +1542

      Your statement assumes he isn't already. He built a vehicle mounted laser weapon, for crying out loud.

    • @BuffTF2Engineers69
      @BuffTF2Engineers69 Рік тому +281

      I know my agent isnt looking at me.

    • @ogge8375
      @ogge8375 Рік тому +113

      and the aarp

  • @theshadowsagas3617
    @theshadowsagas3617 Рік тому +4863

    I love how you've gone from making cool sugar rockets to casually conducting drone strikes in someone's backyard

    • @DiegoGomez-pk5tg
      @DiegoGomez-pk5tg Рік тому +190

      The refrigerator needed to pay for its war crimes

    • @TheNamesArif
      @TheNamesArif Рік тому +41

      hence the name, backyard scientist

    • @nitramreniar
      @nitramreniar Рік тому +72

      @@TheNamesArif Ok so the name was accurate for the starting point - does that mean that he should now change it to "backyard weapons manufacturer"?

    • @shreyanshbhogayta6349
      @shreyanshbhogayta6349 Рік тому +61

      Backyard military industrial complex
      BMIC

    • @Babushkabongwatr
      @Babushkabongwatr Рік тому

      ​@50 person account experiment backyard lockmart

  • @Catstronautgirl
    @Catstronautgirl 3 місяці тому +391

    FBI agent 1: "Should we... should we intervene this guy?"
    FBI agent 2: "No, no, no we can use this."

    • @user-ki4ms5jg7r
      @user-ki4ms5jg7r 3 місяці тому +21

      FBI agent: "Should we... should we intervene this guy?"
      CIA agent: "No, no, no we can use this."
      Fixed.

    • @Beastgamer-YTRP
      @Beastgamer-YTRP 2 місяці тому +8

      @@user-ki4ms5jg7r Eh the original was better

    • @user-ki4ms5jg7r
      @user-ki4ms5jg7r Місяць тому +2

      @@Beastgamer-YTRP Why? FBI didn't used it yet. But CIA - do did!

  • @internetmike
    @internetmike 4 місяці тому +133

    "this morning I woke up, went to the bathroom, and got out of bed" is hilarious

    • @rippilot2113
      @rippilot2113 19 днів тому +2

      Had to rewind to make sure I heard it right lmao

    • @greyvr4336
      @greyvr4336 6 днів тому

      @@rippilot2113 Also noticed.
      Someone tell him to get out of bed first.

  • @terraeric2350
    @terraeric2350 Рік тому +4119

    I love how this channel has evolved from kid friendly fun videos to almost breaking geneva convention.
    Edit: I didn't expect to get so many likes xd. But I wanted to add that I genuinely love your videos Kevin, and I really hope you keep making them (:.

    • @michaelt.9372
      @michaelt.9372 Рік тому +334

      It’s not like Kevin signed it so who cares?

    • @petersmythe6462
      @petersmythe6462 Рік тому +123

      This is the evolutionary arc of most channels. Eventually they will be showing how to make VX on cocomelon.

    • @wumbo2255
      @wumbo2255 Рік тому +92

      Already broke the geneva conventions with exploding bullets lol

    • @kerbaltubehd5737
      @kerbaltubehd5737 Рік тому +172

      It’s more of a Geneva checklist now

    • @teiermyler4926
      @teiermyler4926 Рік тому +7

      underrated

  • @williaml-we3oz
    @williaml-we3oz Рік тому +2298

    I love how you can transfer from making borderline explosives to bladed rockets to a subscription service for teaching stem to kids in like 8 minutes

    • @gn6691
      @gn6691 Рік тому +70

      Florida man in a nutshell

    • @che887
      @che887 Рік тому +27

      @@gn6691 Florida gentleman

    • @MyName-vg8yu
      @MyName-vg8yu Рік тому +10

      what do you think stem is?

    • @Chrontius
      @Chrontius Рік тому +19

      How else are kids going to learn they want to melt-cast explosives so they can build supersonic flying knife missiles?

    • @DarkIzo
      @DarkIzo Рік тому +2

      +the casket dance meme at the end

  • @the_average_canadian
    @the_average_canadian 5 місяців тому +247

    Kevin: Proves his rocket will go clear through a car door
    Also Kevin: Continues to use a car as cover from his rocket

    • @I.Reckon
      @I.Reckon 4 місяці тому +1

      There could be a problem.

    • @Aquamissle
      @Aquamissle 3 місяці тому +4

      @@I.Reckon Rocket: "Reverses"
      Kevin: "This will work right?"
      That will be his tombstone quote lol

    • @CorePathway
      @CorePathway 3 місяці тому +1

      Ok honey, I’m going to the store, need anything?
      - unlocks car
      WHOOOOOSH…SMASH 😮

    • @aeb830
      @aeb830 3 місяці тому +1

      through his head to the us military "hmmm whats this"@@Aquamissle

  • @elbeetlebeasto
    @elbeetlebeasto 6 місяців тому +32

    you're definitely on a government watchlist now if you weren't already lol

  • @boomboy4102
    @boomboy4102 Рік тому +2662

    The sequel we’ve needed for so very very long

    • @Charles12
      @Charles12 Рік тому +10

      Technically its a threequel

    • @Genuinespaceman
      @Genuinespaceman Рік тому +2

      Yes

    • @ERROR-ip3ph
      @ERROR-ip3ph Рік тому +5

      From knife rocket to sextuple knife rocket to Thomas the armor piercing rocket

    • @TheoHiggins
      @TheoHiggins Рік тому

      "Next week" finally arrived

  • @darekdiscovers
    @darekdiscovers Рік тому +4176

    Kevin, thank you so much, I am honored to have had the opportunity to work with you on this experiment! Can't pass up the chance to say, I had an absolute blast!

    • @N279
      @N279 Рік тому +6

      👍

    • @zacharynolan9553
      @zacharynolan9553 Рік тому +28

      Thanks for helping make the video happen!

    • @yellowbacon69
      @yellowbacon69 Рік тому

      @@N279 I

    • @silentracer911
      @silentracer911 Рік тому +8

      I guess you don’t want to lose your channel and or get blocked permanently… that would suck, damn guidelines…
      But must you redact absolutely EVERYTHING that’s important? I can understand some but all? It’s part of free speech… it’s the same kind of thing the Shulgins ran into when they released their books PiHKAL and then TiKHAL.

    • @youlikemen1354
      @youlikemen1354 Рік тому +13

      @@silentracer911its so people dont try to figure it out what he made

  • @blocksland817
    @blocksland817 2 місяці тому +30

    how to make rocket fuel first get sugar and put it in a heating pan and now you want to get potassium nitrate, mostly found in fertilizer put that in the mixture. make sure to keep the pan heated while stirring until it looks like a chocolate cake then you want to pour that into your tube of rocket fuel done! if you want a more efficient type of rocket fuel, get a heating pan and put rust powder and sugar inside mix until done. Please make sure you search up the required amount of each substance before doing so. 9:13 example of what can happen

    • @Dosasco
      @Dosasco 2 місяці тому +3

      … there’s a reason why Kevin blurred it

    • @theblazingking7311
      @theblazingking7311 23 дні тому

      @@Dosasco Don't worry its on Wiki How

    • @Rabbit-o-witz
      @Rabbit-o-witz 3 дні тому

      Why is it so expensive if its just sugar and poop?

  • @OrigionalCigarette
    @OrigionalCigarette 3 місяці тому +12

    This isn't a rocket knife,
    this is a whole unmarked assassination weapon

  • @UpLateGeek
    @UpLateGeek Рік тому +4183

    Massive congratulations on figuring out how to make your own rockets, dude. And thanks for showing us why you need a license to buy them!

    • @ryleyallen185
      @ryleyallen185 Рік тому +146

      Such a shame he had to censor it 👉👈

    • @theKashConnoisseur
      @theKashConnoisseur Рік тому +132

      @@ryleyallen185 If only it was Google-able... 🤔

    • @GameristicForce
      @GameristicForce Рік тому +96

      So you have to pour *rocket fuel* into *cardboard*

    • @jBurn_
      @jBurn_ Рік тому +51

      @@theKashConnoisseur "remove the meatballs from the oven" 😅

    • @laxplayer99
      @laxplayer99 Рік тому +36

      @@theKashConnoisseur I checked my anarchist's cook book that I got put on a list for buying. no rockets, but it does explain how to make a bangalore torpedo

  • @matthewnelson5293
    @matthewnelson5293 Рік тому +3200

    I laughed so hard at the line, "Guess what, rocket nerds! I figured out how to make my own rocket fuel, and it's twice as dangerous."

    • @davidnoland2574
      @davidnoland2574 Рік тому +72

      He is very right on that point highenergy rockets can be very dangerous...

    • @crapple5759
      @crapple5759 Рік тому +64

      @@davidnoland2574 sugar-saltpeter is pretty benign. Put it in a tube with a small opening and you have a relatively safe rocket. ¯\_(ツ)_/¯

    • @Hnkka
      @Hnkka Рік тому +54

      @@crapple5759 Next step is using ammonium perchlorate as your oxidizer and you get this.

    • @Hnkka
      @Hnkka Рік тому +8

      @@crapple5759 I think the rocket has aluminium and perchlorate and maybe more of things?

    • @sg_kerb
      @sg_kerb Рік тому +6

      @@crapple5759 aniline + nitric acid is a pretty decent one

  • @AlekMosley
    @AlekMosley 6 місяців тому +18

    The fact that he put tomas the train's face on the rocket and played the theme song got me laughing so hard and then he played the intense base theme made me almost die laughing, and then to top it all tomas' face got literally welded to the front of the rocket.
    times that made me laugh: 9:07 9:15 10:12

  • @overwatchpronstars3277
    @overwatchpronstars3277 Місяць тому +6

    This man basically created his own version of the RX-9 hellfire missile

  • @zabzurto9610
    @zabzurto9610 Рік тому +674

    The rocket fuel explanation was genuinely brilliant comedy, love your work.

    • @foggycontacts3212
      @foggycontacts3212 Рік тому +6

      Meatballs

    • @liamholcroft7212
      @liamholcroft7212 Рік тому +1

      @@foggycontacts3212 I agree.

    • @shrek5629
      @shrek5629 Рік тому

      @@foggycontacts3212 ong

    • @retard1488
      @retard1488 Рік тому +16

      not sure why he bothered to make a big deal out of it, its just sugar and some nitrate or, less likely, chlorate. grant thompson made videos about this over a decade ago

    • @Sk1m_Beeble
      @Sk1m_Beeble Рік тому

      @@retard1488 you mean rocket and fuel, right?

  • @mberrios1875
    @mberrios1875 Рік тому +1910

    I love watching Kevin casually make Military Grade Weapons

    • @PointfulOkapi
      @PointfulOkapi Рік тому +59

      Average day in Florida. He should get some help from Nile

    • @bittersweet9248
      @bittersweet9248 Рік тому +9

      US becareful..one of these days I think he has high potential to be recruited by the middle Eastern countries !

    • @garrettkajmowicz
      @garrettkajmowicz Рік тому +16

      They aren't militarily-useful until they can be aimed in a useful fashion.

    • @PointfulOkapi
      @PointfulOkapi Рік тому +30

      @@garrettkajmowicz h-hey, are you supposed to be working here? Why are you tying that cable up in my office?

    • @inthefreytoo
      @inthefreytoo Рік тому +7

      Making them at 1/1,000,000th the price of the closest government weapons manufacturer bid too

  • @hlpflalms
    @hlpflalms 6 місяців тому +4

    Not 3.5 seconds in and there was an amazing joke that made me die laughing

    • @ThatCoalSoul
      @ThatCoalSoul 6 місяців тому

      You're not the only one who (wet) spotted that.

  • @andyk4744
    @andyk4744 Рік тому +1883

    I remember a couple years ago Kevin used to mess around with oobleck but now hes gone insane and is making military grade weapons lmao

    • @MrKeserian
      @MrKeserian Рік тому +155

      I feel like this is a great companion to Mark Rober's latest video where he realizes that he's basically making an ICBM terminal guidance system and maybe that's why none of his NASA contacts want to help with it.

    • @roblowe2714
      @roblowe2714 Рік тому +60

      @@MrKeserian its the natural progression of science youtubers

    • @Nordfixh
      @Nordfixh Рік тому +81

      @@roblowe2714 they start off as educational and then become weapons manufacturers

    • @danthespaceman9747
      @danthespaceman9747 Рік тому +21

      I blame Michael reeves

    • @blackjak4185
      @blackjak4185 Рік тому +20

      Michael Reeves is based

  • @jonlusz5027
    @jonlusz5027 Рік тому +1866

    Gotta love it when Kevin starts the video by explaining how legal bombs are boring, then proceeds to make his own bomb that's twice as strong.

    • @trezdonandblizzard5642
      @trezdonandblizzard5642 Рік тому +12

      Why hit the teddy bear

    • @jimmynutrition694
      @jimmynutrition694 Рік тому +19

      6:39 TARGET LOCKED, INITIATING EXTERMINATION PROTOCOL

    • @grimreefer213
      @grimreefer213 Рік тому +22

      10x as strong

    • @steamed_ham1767
      @steamed_ham1767 Рік тому +9

      I want to know how to look up how to make rocket fuel without ending up on a list now

    • @werk62
      @werk62 Рік тому +14

      @Steamed_Ham17 65% potassium nitrate, 35% sugar. Mix with water, slowly boil off the water in a pan. Pour the mixture into tube before it hardens. Don't touch it because it is very hot and also sticky.

  • @nicklatino7157
    @nicklatino7157 Місяць тому +1

    Man, I love this video and your energy!

  • @dianaroach3093
    @dianaroach3093 4 місяці тому

    I love the excitement you have. Loved the video!!! That was awesome

  • @koneeche
    @koneeche Рік тому +3982

    Kevin in 2015: "I poured molten aluminum into these wacky everyday items!"
    Kevin in 2022: "I made a makeshift hellfire ROCKET capable of reaching mach ~0.5 which can tear through a metal car door!"
    edit: in seeing all the responses, it makes me wonder: what DID he even make? a hellfire missile? cable rocket? mechanical rpg? knife boomy thingy? I guess we'll never have a good answer to this... rofl

    • @SafariPlum
      @SafariPlum Рік тому +64

      This comment should be pinned at the top, LoL I was in stitches.

    • @DaemonR13
      @DaemonR13 Рік тому +95

      A BLADED makeshift ballistic missile

    • @DannyrusK
      @DannyrusK Рік тому +33

      damn your comment was so funny you even got Naomi in stitches.

    • @makoado6010
      @makoado6010 Рік тому +21

      its not ballsitic missile.. more like a "mechanical" rpg.
      aaaannddddd originally this is how the people of india used them where form arrived to europe around napoleonic war. and ofc the guy tired to sale it as own invention.

    • @terrabiker
      @terrabiker Рік тому +8

      The name "ballistic missile" kinda gives you a huge hint what the trajectory of such missile is....

  • @uncle_thulhu
    @uncle_thulhu Рік тому +902

    That drone shot over the back of the rocket as it hit the propane tanks was a cinematic masterpiece.

  • @mitropoulosilias
    @mitropoulosilias 7 місяців тому

    one of your best videos!! really looks like strong good rockets

  • @GrantJohnston-dr9rt
    @GrantJohnston-dr9rt 4 місяці тому +1

    Nice One,Rocket man! Well done! Greetings from Montreal.

  • @rinchanlife
    @rinchanlife Рік тому +798

    the rocket knife is one of my favorite things you’ve made, i’m happy to see you revisiting it :)

    • @bakarimims6384
      @bakarimims6384 Рік тому

      MythBusters did it first

    • @pqddachu
      @pqddachu Рік тому +1

      @@bakarimims6384 and?

    • @jcims
      @jcims Рік тому +1

      Check David Windestal's channel. He's got an amazing setup with a ton of cool vids.

    • @DirtmopAZ
      @DirtmopAZ Рік тому +2

      Honestly. And like the US Military rocket is WAY too identical to have not been stolen

    • @Francois_Dupont
      @Francois_Dupont Рік тому

      YOU

  • @sir_vix
    @sir_vix Рік тому +1508

    Anything moving away from you at that high a velocity has to be safe. I think this is some of Kevin's best work.

    • @ratchetandchank8648
      @ratchetandchank8648 Рік тому +103

      Bro the ricochet off the car door

    • @RotGodKing
      @RotGodKing Рік тому +68

      Unless it has the ability to turn around.

    • @DEFCON5307
      @DEFCON5307 Рік тому +44

      @@RotGodKing gotta make it a little frightening to be exciting

    • @jellyman140
      @jellyman140 Рік тому +17

      @@ratchetandchank8648 That flew really high into the air as well, looked like the rocket was still firing, that must have gone far

    • @mr.2minutes161
      @mr.2minutes161 Рік тому +5

      i don't think want to be at the back end of an RPG, or any rocket

  • @MM22966
    @MM22966 5 місяців тому +3

    The fact that somebody beat the CIA and Lock-Mart to creating a missile-sword in his backyard is both hilarious and the most American thing ever.

    • @NicPTheMeme
      @NicPTheMeme 2 місяці тому

      Funnily enough: there _IS_ already a 'knife missile' out there. It's called the Ginsu missile and what was used to kill Osama Bin Laden/ another terrorist

  • @YOUR_DEATH_8_8
    @YOUR_DEATH_8_8 6 місяців тому +3

    That intro 🤣 so you went to the bathroom then got out of bed 😭

  • @Rich-hm9ux
    @Rich-hm9ux Рік тому +2988

    I love this guy’s passion. I just hope he makes it past 40.

  • @mattyoung4077
    @mattyoung4077 Рік тому +703

    Frankly, at this point I'm surprised Homeland Security don't have a handler who knows you by name and starts every call with "Kevin, we need to have a chat about your latest video".
    Also, this video is basically a list of reasons for _exactly why the military thought your idea was worth stealing_

    • @simmonsjoe
      @simmonsjoe Рік тому +55

      You need to check out Veritasium's last video. Egg drop from space. His original plan got nixed cause a NASA scientist informed him "Uhh, that is basically a ballistic missile guidance system, I can't help you with that. It was like 90% done and in testing.

    • @Tech_9332
      @Tech_9332 Рік тому +48

      @@simmonsjoe Mark Rober*

    • @battiestelf
      @battiestelf Рік тому +10

      ​@@simmonsjoethat was mark rober

    • @TheDaringPastry1313
      @TheDaringPastry1313 Рік тому +9

      @@simmonsjoe that was Mark Rober

    • @Newt2799
      @Newt2799 Рік тому +21

      Wait who was it again? I don’t think I’ve heard it enough yet

  • @HauptmanNase
    @HauptmanNase 5 місяців тому

    scary, but totally worth it... Fantastic show, well done dudes

  • @boazyeboah1824
    @boazyeboah1824 4 місяці тому +2

    you know knives are dangerous
    you know rockets are dangerous
    Kevin: i woke up and ask the FBI to recruit me

  • @williamdougherty3836
    @williamdougherty3836 Рік тому +777

    You take Florida Man to a whole new level brother. Setting the bar higher, and throwing the curb for the rest of us. And I just want to say thank you!!

  • @Baltux
    @Baltux Рік тому +753

    Never stop being the most Florida man of them all! Was excited for this since you talked about it on Safety Third!

  • @denverwynn4
    @denverwynn4 9 днів тому

    Hahaha. This is awesome. Kudos to your efforts making those. Well done.

  • @gl3nji
    @gl3nji 28 днів тому

    9:02 I can't wipe the smile from my face no matter how many times I watch this "very special rocket"

  • @misaka8417
    @misaka8417 Рік тому +1486

    After 4 months of watching I Did a Thing, its nice to come back to Kevin and see him do things properly and safely

    • @quantumblur_3145
      @quantumblur_3145 Рік тому +40

      Better engineering too

    • @DevynPlaysGames
      @DevynPlaysGames Рік тому +57

      Not to mention Kevin's not a shithead

    • @Petrslav
      @Petrslav Рік тому +48

      @@C.Mc. idat's first channel was a political channel. The dude went to north Korea to get a haircut.

    • @yurttgjk
      @yurttgjk Рік тому +3

      @@C.Mc. "opened his mouth and inserted his foot" i am sorry what video is it? Or you mean his political opinion?

    • @Uberkilltoecheese
      @Uberkilltoecheese Рік тому

      @@C.Mc. yeah i never really got why he was even a smidge popular, he has boring execution, and is just weird in his videos etc

  • @fnarget519
    @fnarget519 Рік тому +1051

    Kevin a few years ago : “Haha salt in water go boom”
    Kevin now : literally making loitering munitions in his backyard

    • @ncubesays
      @ncubesays Рік тому +21

      "We're going to get arrested but we did it!"

    • @christopherwheeler688
      @christopherwheeler688 Рік тому +8

      In what way do they loiter? Seems to me that they just go straight to work.

    • @evo3s75
      @evo3s75 Рік тому +4

      not a loitering munition tho? nothing of it comes even close to it
      Just an unguided cable rocket

    • @FirstDagger
      @FirstDagger Рік тому +5

      @@christopherwheeler688 ; They don't, the poster just used a word they picked up.

    • @keekedup
      @keekedup Рік тому +5

      please learn what words mean before you use them

  • @meenism
    @meenism 3 місяці тому

    This was SO fkn AWESOME! SO satisfying!

  • @Frogz-69
    @Frogz-69 6 місяців тому +2

    Imagine this a robber break into ur home and they see Kevin just sitting with this rocker to his side 😂

    • @ThatCoalSoul
      @ThatCoalSoul 6 місяців тому +1

      He's not an old man yet!

  • @mrdrifter3925
    @mrdrifter3925 Рік тому +792

    The kinetic energy generated by those rockets is insane! You are on a list for sure.

  • @Last_Baguette0001
    @Last_Baguette0001 Рік тому +1059

    During an apocalypse Kevin is that one person you'd want on your team

    • @frosthoe
      @frosthoe Рік тому +21

      Im going to disagree solely based on the fact that kevin wont let you have your weapons until hes finished and they are just right...even if the z's are banging the door. (but the Kev will hit the button and 37 microwave magnetrons driven by garbage can sized capacitors, strategically lining the foyer will assist the Z's in heatedly departing or turning to ash..

    • @thelaststraightguy990
      @thelaststraightguy990 Рік тому +11

      Him and Colin Furze, you'd be set for life.

    • @aratof18
      @aratof18 Рік тому +4

      also styropyro

    • @wun_zee3599
      @wun_zee3599 Рік тому +4

      I'd pick all of those guys plus a few veterinarians. Those mad lads are trained to deal with "uncooperative patients" who may bite as well as have top tier improvisation skills during a surgery or something, since their patients dont always have an anatomy that's as well studied as human anatomy. Not to mention they always have their tools and such with them in their trunk so they can bring the hospital right to their patient if they can't bring the patient to the hospital

    • @AwesomeProjects20
      @AwesomeProjects20 Рік тому +1

      He’s the Professor from Gilligan’s Island.

  • @Mod-Master.Unstoppable
    @Mod-Master.Unstoppable Місяць тому +1

    He’s the worlds most dangerous and wanted man 😂 😂 😂

  • @bruhmoment3741
    @bruhmoment3741 6 місяців тому +2

    Lesson learned, never mess with a neighbour that knows rocket science

  • @uwo5786
    @uwo5786 Рік тому +1532

    Kevin is why we have safety labels on stuff

    • @fallschannel4331
      @fallschannel4331 Рік тому +23

      Send this person to Ukraine

    • @Stanfordscienceman
      @Stanfordscienceman Рік тому +11

      He’s the reason we need to tell people how shampoo works but knowing him he would find a way to make it dangerous somehow

    • @guntherwundurbah2458
      @guntherwundurbah2458 Рік тому +6

      He's likely the reason there's instructions on toilet paper

    • @TheRadioknight
      @TheRadioknight Рік тому +5

      @@Stanfordscienceman he would likely turn it into a paste that will ignite if it comes in contact with water somehow

    • @KjetilBalstad
      @KjetilBalstad Рік тому +2

      So he instantly knows which should be broken?

  • @napalmholocaust9093
    @napalmholocaust9093 Рік тому +351

    You could torch the blade's spine red hot till a magnet won't stick then air cool and it will be softer to soak-up the shock.
    Also the same treatment works to soften a small area of hardened steel so you can drill it if it is too hard for your bits. I've got stuff that shrugs carbide unless you take some temper out.
    Diferential hardening for shock is the same reason why an ax is soft except for an edge that's a different metal slotted in. That and durability from a hardened edge.

    • @jmathews470
      @jmathews470 Рік тому

      Yeah like AR500.....

    • @josephwaldner7752
      @josephwaldner7752 Рік тому +3

      @@jmathews470 AR 500 isn't impressive in terms of hardness but it has a higher tensile strength, you need carbon content to achieve hardness and ar500 dosn't have enough of it

    • @gunners4129
      @gunners4129 Рік тому

      Wouldnt this work harden it and make it more brittle? I mean it's literally spreading the molecules out to make the metal less dense.

    • @coltonm8623
      @coltonm8623 Рік тому +2

      @@gunners4129
      Metal Tempering
      Tempering is done to develop the required combination of hardness, strength and toughness or to relieve the brittleness of fully hardened steels. Steels are never used in the as quenched condition. The combination of quenching and tempering is important to make tough parts.
      This treatment follows a quenching or air cooling operation. Tempering is generally considered effective in relieving stresses induced by quenching in addition to lowering hardness to within a specified range, or meeting certain mechanical property requirements.
      Tempering is the process of reheating the steel at a relatively low temperature leading to precipitation and spheroidization of the carbides present in the microstructure. The tempering temperature and times are generally controlled to produce the final properties required of the steel. The result is a component with the appropriate combination of hardness, strength and toughness for the intended application. Tempering is also effective in relieving the stresses induced by quenching.

    • @Dan-yk6sy
      @Dan-yk6sy Рік тому +2

      Pretty sure at the speeds the rocket are going you don't even really need much of a sharp blade, just take any preferred type/thickness of steel blanks and cut the "blades" out.
      Store bought knives just look cool and make good video.

  • @BeyondTheSanctuary
    @BeyondTheSanctuary 2 місяці тому +1

    Let me get this straight...You woke up, went to the bathroom and THEN got out of bed? I stopped drinking because of that.😂

  • @johnd5619
    @johnd5619 6 місяців тому

    the filing on this was epic. well done sir!

  • @DONKFORTRESS6956
    @DONKFORTRESS6956 Рік тому +1822

    I like how kevin just casually made a highly lethal tank buster and then dipped

    • @OneBiasedOpinion
      @OneBiasedOpinion Рік тому +156

      *remade a highly lethal personnel deleter.
      The R9X isn’t for hard targets. It’s meant for assassinations with minimal collateral damage.

    • @ericajimenez741
      @ericajimenez741 11 місяців тому +75

      Thomas the anti persons missile

    • @maxbennett5412
      @maxbennett5412 10 місяців тому +7

      @@ericajimenez741 That was a very funny part of it.

    • @gengamen
      @gengamen 10 місяців тому +5

      Stand behind blast shield

    • @mikelopez9071
      @mikelopez9071 10 місяців тому +25

      I like how he was surprised the military stole his idea

  • @CyanicCore
    @CyanicCore Рік тому +654

    This video already proved Kevin's sharp wit with all the cutting-edge tech, but Thomas practically killed me.

  • @splatter_proto
    @splatter_proto 6 місяців тому +1

    I think I've only watched like three of this guy's videos, but he always manages to almost make a bomb in the first few minutes, so that's fun

  • @user-ly1ej4gt1p
    @user-ly1ej4gt1p 3 місяці тому +1

    That teddy bear needs a raise.

  • @solidacid1337
    @solidacid1337 Рік тому +470

    The masonry bit trick is SO USEFULL.
    The thin string holding the cable is super ingenious.
    The six-knife'ed rocket tips look so porking menacing.
    The car door hit was.. *cheffs kiss*.
    The drone shot of the propane tanks.. wow.
    The fridge shot... beautiful.
    Finishing off with one of rockets tips as a tesla coil topload playing Coffin Dance? dude..
    Kevin. You, William Osman, Allen Pan, Nile Rainbow™, Peter Sripol and all the other awesome people on there are my favorite UA-camrs.
    The quality of the videos you guys make are off the chuggin' charts.

    • @teddyroosevelt79
      @teddyroosevelt79 Рік тому +16

      I'm not even Kevin and you made my balls blush.

    • @andruucspr7466
      @andruucspr7466 Рік тому +18

      Woah woah woah. Don’t forget I Did a Thing

    • @solidacid1337
      @solidacid1337 Рік тому +5

      @@andruucspr7466 I DID. He's one of my favorites too! He's made some awesome videos and things too!

    • @G_____
      @G_____ Рік тому +1

      Colin Furze is pretty insane too

    • @theburgerman
      @theburgerman Рік тому +1

      wowza

  • @mitchellbarton7915
    @mitchellbarton7915 7 місяців тому +763

    I love the chaotic energy he gave out at the start of the video. "Well, guess what? I can make my own and its TWICE as dangerous!"

    • @simonhicken3892
      @simonhicken3892 7 місяців тому +14

      He still was underestimating the rockets power😂

    • @nchtblut
      @nchtblut 4 місяці тому +1

      xd

  • @MattH-wg7ou
    @MattH-wg7ou Місяць тому

    Ive seen these rockets in action in real life and theyre something else. They are SO precise and accurate.

  • @warpten2215
    @warpten2215 4 дні тому +1

    The living room one is essentially exactly how the CIA assassinated Al-Zawahri lmao..

  • @pfendi
    @pfendi Рік тому +983

    The Thomas the tank engine gag had me dying! Great video dude. You’re doing the stuff that I’m too afraid to do for the sake of my life and well being, and it’s epic.
    (Edit: tank engine not train engine. :)

  • @peacefulsoysouce2869
    @peacefulsoysouce2869 Рік тому +185

    now we need this and Mark's precision-guided missile combined

    • @WhiteNorth
      @WhiteNorth Рік тому +32

      I don't think how-to videos for terrorists is a good strategy.

    • @loatherd
      @loatherd Рік тому +4

      @WhiteNorth Terry’s like the spread of an ied so anything in the homing category is too fancy lol

    • @Skylikesavation
      @Skylikesavation Рік тому +4

      That would be highly illegal

    • @AmirKhan-ky2cz
      @AmirKhan-ky2cz Рік тому +2

      @@WhiteNorth I'm actually a wanted terrorist in Syria and I'm watching this.

    • @123pantburk
      @123pantburk Рік тому +1

      mark who

  • @DriftingDraftsman
    @DriftingDraftsman Місяць тому

    The censored explanation of creating rocket fuel had me laughing out loud

  • @JTCBoss1
    @JTCBoss1 23 дні тому

    “Today I woke up, went to the bathroom, and got out of bed.”
    My brain- “In that order??”

  • @lancewellburks9577
    @lancewellburks9577 Рік тому +319

    That Thomas the Tank Engine rocket was the funniest thing I've seen in a while. I know it was a ton of work, but I really appreciate how you just showed all the good stuff. Great video man.

  • @grahamdavies8986
    @grahamdavies8986 Рік тому +1304

    What you called the center support on the door is actually what is called an intrusion beam. These beams are made of at least high strength steel, and I think some cars use ultra high strength steel. The intrusion beam is the main structural strength for doors to protect passengers from severe side impacts. That was impressive to see the knives actually cut through it. I thought for sure the knife was just going to shatter when it hit the intrusion beam but it sliced through it like butter.

    • @BrazilianPegging
      @BrazilianPegging Рік тому +78

      Most cars less than 400mph

    • @Vid_Master
      @Vid_Master Рік тому +9

      wow that is incredible, thanks for that info!

    • @jonathanrosskamp324
      @jonathanrosskamp324 Рік тому +50

      @@BrazilianPegging most cars heavier than knives

    • @poiu477
      @poiu477 Рік тому +24

      @@jonathanrosskamp324 I would bet the force per square inch is significantly higher over the much much smaller surface area of the impact, coupled with the cutting effect of the edges, pretty easy to guess the knife rocket would go through it.

    • @de0509
      @de0509 Рік тому +2

      Velocitas eradico!

  • @B4LBIGK
    @B4LBIGK 4 місяці тому

    Bro def gone have the law questioning him with that tank destroyer😂

  • @DPedroBoh
    @DPedroBoh Місяць тому

    The thomas shot was so beautiful. This is art.

  • @brentgroen3204
    @brentgroen3204 Рік тому +54

    10:00
    Damn the rocket even cut that tree

  • @loomloom-productions3755
    @loomloom-productions3755 Рік тому +94

    God i love how he went from a perfectly sane science man in his early days to a mad scientist who’s gone completely insane, god do i love this man lmao

  • @alexjones2924
    @alexjones2924 3 місяці тому

    Bro thomas's face being welded to that rocket face IS INSANE!!!!

  • @BenjaBagod17
    @BenjaBagod17 5 місяців тому

    Him at the department store: Buggy - a few dozen knives, several rolls of duct tape, pipes, a few dozen bottles of propane...

  • @ShaqDarnell1993
    @ShaqDarnell1993 Рік тому +684

    The way Thomas The Tank Engine's face became embedded into the missile after impact is haunting.
    Imagine finding spent missile cartridges in a war zone with Thomas's face on them...

  • @CobraDBlade
    @CobraDBlade Рік тому +644

    I can only imagine what you would be able to achieve if you and the channel Ordinance Lab joined forces.

    • @TheI_OOT
      @TheI_OOT Рік тому +38

      and 'i did a thing' be he is just reckless

    • @john_barnett
      @john_barnett Рік тому

      @@TheI_OOT and a tosser

    • @KLTTLO
      @KLTTLO Рік тому +1

      @@TheI_OOTwhat about action lab....
      he would probably make a earth vacuum and suck out all air on earth

    • @tomothybahamothy
      @tomothybahamothy Рік тому +6

      Best collaboration suggestion I've seen, all these science channels could create a truly spectacular display

    • @zachbrown1630
      @zachbrown1630 Рік тому +11

      an "ordinance" is a law/bylaw usually enforced by some sort of regulatory agency. "ordnance" is the word you meant to use, which refers to explosives/bombs and the like. simple mistake, very commonly made.

  • @druegeme
    @druegeme 6 місяців тому

    The spinning propane tank at 11:55 is my favorite part!

  • @chihuahuagamer123
    @chihuahuagamer123 4 місяці тому +4

    Put a GoPro on the rocket

  • @The_Nailsmith
    @The_Nailsmith Рік тому +269

    My daily dose of danger!!

  • @ThomasTheThermonuclearBomb
    @ThomasTheThermonuclearBomb Рік тому +2775

    It is an honor to be launched by Kevin

  • @jorgeherrera1075
    @jorgeherrera1075 Місяць тому

    Dude you're a super engineer genius. Wow I'm so impressed

  • @Epiccookieboy70
    @Epiccookieboy70 6 місяців тому +1

    The Thomas, the train engine killed me

  • @donutplays9124
    @donutplays9124 Рік тому +75

    With Mark building a predator missile, and now this, I did not realize we were entering into the "UA-camrs recreate weapons of war for fun" Era

  • @userrrrthxmas
    @userrrrthxmas Рік тому +42

    *“I went to the bathroom then got out of bed”*
    *respect*

  • @GorillaDoesGaming
    @GorillaDoesGaming Місяць тому

    Bro thinks of random things at 3 am and builds them immediately

  • @bluedistortions
    @bluedistortions 6 місяців тому

    I burst out laughing at the thomas the tank theme song as he launches a rocket powered thomas through a mock living room 😂

  • @Devisidev
    @Devisidev Рік тому +150

    The first 2 minutes alone is incredibly dubiously legal at best. I love this channel

  • @boneheadinc1350
    @boneheadinc1350 Рік тому +84

    9:16 in britain we call this "thomas the shank engine"

  • @skoronesa1
    @skoronesa1 5 місяців тому

    Thomas' face on that one is a perfect souvenir!

  • @boxfox2945
    @boxfox2945 6 місяців тому

    A fine line, between a rocket. And a stick of dynamite. 😂

  • @redsquirrelftw
    @redsquirrelftw Рік тому +467

    That was awesome. I am honestly surprised the knife was able to cut through so many things even the framework of the car door, that's quite impressive. Shows how much power was behind those rocket motors.

    • @SeventhGod77
      @SeventhGod77 Рік тому +6

      It’s amazing what a couple hundred miles per hour can do.

    • @billhopen
      @billhopen Рік тому +2

      @@SeventhGod77 exactly...velocity cubed....have you seen the 500mph pingpong ball that goes through a pong paddle, destroying it

    • @waynehale66
      @waynehale66 Рік тому +2

      Mixed with speed a lot of things might penetrate mostly everything I think?

    • @424Minecrafter
      @424Minecrafter Рік тому +2

      At the speed they were going it starts to become less cutting and more crushing its way through whatever is in its path

  • @Jay_in_Japan
    @Jay_in_Japan 9 місяців тому +70

    "Today I woke up, went to the bathroom, and got out of bed"
    Underrated part of the video 😂

    • @-iceraptor-
      @-iceraptor- 3 місяці тому +1

      Yea I caught that too 😂, wake up get out of bed than go to the bathroom. 😂

    • @nicorubio8290
      @nicorubio8290 3 місяці тому

      So true 🤣🤣🤣🤣

    • @Volron
      @Volron 2 місяці тому

      That one had me rollin! The look on his face was hilarious. 🤣🤣🤣

  • @JohnDoe-rx3vn
    @JohnDoe-rx3vn 5 місяців тому

    Thanks for the carbide drill tip

  • @moongirl270
    @moongirl270 Місяць тому

    I love your kiwico ads idk why they just make me so happy lmao anyways gonna get a child science kit now!

  •  Рік тому +152

    Duuuuude that was insanly awesome! Spinn-forging the nozzles was absolutely brilliant. You are the true king of Rocket Knife

  • @Palozon
    @Palozon Рік тому +246

    This is actually a perfectly illustrative experience of what the difference between a rocket and a missile is. Lockheed made a knife missile. You made a knife rocket.

    • @tonywood3660
      @tonywood3660 Рік тому +10

      One cost millions, the other bugger all. Hey Kev... ever thought of a new business model, save US taxpayers heaps....

    • @Palozon
      @Palozon Рік тому +24

      @@tonywood3660 I'm going to pretend you weren't making a joke and just misunderstood, because it would give me an excuse to elaborate.
      Missiles are guided, rockets aren't. Most of the issues BYS had were indicative of rockets, i.e. struggling to coax it into hitting the target without issue. His actual rocket engine performed great.

    • @koneeche
      @koneeche Рік тому

      I feel like this is slightly targeted...

    • @enderguyx2081
      @enderguyx2081 Рік тому +1

      @@koneeche like a missile!

    • @yeetoburrito9972
      @yeetoburrito9972 Рік тому +1

      One of these knows where it is because it knows where it isn't, the other has no clue where it is and needs paracord to guide it.

  • @1186wolf
    @1186wolf 22 дні тому

    As they say you can accomplish whatever you put your mind to good work!

  • @236260
    @236260 23 дні тому

    You are out of your mind, man.
    *subscribed*

  • @CheezeWuz
    @CheezeWuz Рік тому +158

    you know.... the fact he made his own rocket fuel and cones, and they work is really impressive

    • @theflamecoreguy7929
      @theflamecoreguy7929 Рік тому +3

      @@billwilliam6869 but u still need so much perfection with that nozzle and fuel tho even he managed to keep hole in middle of the rocket motor fuel that's very impressive I was never able to do that

    • @klartext5806
      @klartext5806 Рік тому

      Do you know how he mixed the fuel or what it's called?

    • @kittenwizard4703
      @kittenwizard4703 Рік тому +1

      @@klartext5806 no, and he would be breaking several federal laws by disclosing that information

    • @klartext5806
      @klartext5806 Рік тому

      @@meetkilla4941 broo😭

    • @klartext5806
      @klartext5806 Рік тому

      @@meetkilla4941 🤣

  • @glowsquidking
    @glowsquidking Рік тому +805

    Can you imagine how awkward it was to buy this many knives? The cashier was probably really concerned.

    • @ShafaqIftikhar-pw9ld
      @ShafaqIftikhar-pw9ld 9 місяців тому +21

      Lol true but he can say he is a chef and will be opening up his new restaurant venture

    • @PigZzzZ
      @PigZzzZ 8 місяців тому +29

      Kevin probably became a regular at his local Walmart after how many knives he bought lmao

    • @Balteus1
      @Balteus1 8 місяців тому +5

      with good reason for the concern

    • @cheesy1224
      @cheesy1224 8 місяців тому +5

      he got them online

    • @ShafaqIftikhar-pw9ld
      @ShafaqIftikhar-pw9ld 8 місяців тому +4

      @@cheesy1224 even better way without being asked too many questions lol

  • @davidmeuter7916
    @davidmeuter7916 2 місяці тому

    Imma keep it real with you bro, you're on hella watch lists.

  • @bobert6259
    @bobert6259 Місяць тому

    Dude this could be your new aluminum! Think of all the things you can explode with this mixture. Rocket into aluminum volcano? Bullet vs rocket? Molten aluminum vs rocket? With a high speed camera the possibilities are endless!

  • @ChokyoDK
    @ChokyoDK 8 місяців тому +330

    He went from making melted salt blow up in an aquarium to creating military grade missiles.
    Amazing.

    • @chrisdef15
      @chrisdef15 6 місяців тому +9

      I’m not saying it’s not awesome. Loved this. But military grade missiles? It’s a rocket that needs a cable that failed half the time. Again loved it. But huge difference.

    • @jamielonsdale3018
      @jamielonsdale3018 6 місяців тому +34

      ​@@chrisdef15Military grade: Barely works, built by the lowest bidder with an _almost_ reasonable delay.

    • @garywilliams7319
      @garywilliams7319 5 місяців тому

      Isn’t that what the government procurement office does? Lowest bidder and all. The vendor makes their money during cost overruns. Ha. @@jamielonsdale3018

    • @lordgarion514
      @lordgarion514 3 місяці тому +1

      You mean Hamas grade... Lol

    • @joseluispalmeras9414
      @joseluispalmeras9414 2 місяці тому

      One of those whom worked on your kitchen meanwhile You are esting with your family and youll se if they are Mily ir not XD