Making a Sword with THERMITE!

  • Published on Oct 11, 2017
  • Usually Thermite is used to destroy things... Instead, I wanted to use it to make something to destroy things with.
    If you have never heard of it -Thermite is a mixture of Iron Oxide (rust) and Aluminum powder. When you ignite it a vigorous chemical reaction takes place which results in liquid iron. Its used industrially for welding metal, the military uses it to destroy enemy equipment, teachers use it for science demonstrations, and youtubers just melt stuff with it.
    I made a mold out of insulating firebricks, and set off the thermite over it to fill it with molten steel!

    David Collier - Thermite Casting
    Bill Gilmore - Lost Foam Thermite Casting
  • Science & TechnologyScience & Technology

Comments • 4 169

  • plush world
    plush world 5 hours ago

    he looks like he gets no sleep

  • Kyle Miller
    Kyle Miller 20 hours ago

    Lol the description

  • NJT Bun
    NJT Bun Day ago

    Have a competition to see who can make the coolest thing from things from Home Depot

  • 1998 mulan szechuan sauce is the meaning of life

    This guy reminds me of Wolowitz

  • Fanky Lemon
    Fanky Lemon 2 days ago

    I'd love to have a neighbour like you

  • 20Elijah Charles
    20Elijah Charles 2 days ago

    Woah you must have complete self movement to dodge that!

  • Jacob Erwin
    Jacob Erwin 9 days ago

    Can you make me one?😂

  • matt smith
    matt smith 13 days ago

    wouldn't using flux provide a better yield too?

  • Kids Tschoepe
    Kids Tschoepe 15 days ago

    make a REAL lazer gun

  • Saoirse Fojas
    Saoirse Fojas 16 days ago

    Two of my fav ty-ers in one vid!

  • Saoirse Fojas
    Saoirse Fojas 16 days ago

    Holy frigging waaaaaaaaaaat!?

  • kawaii hitler
    kawaii hitler 16 days ago

    1:30 why is the bottle of lighter fluid so- *explosion*

  • Tyler Kidd
    Tyler Kidd 17 days ago

    what about a MARMITE sword? Nah, cuz MARMITE IS TERRIBLE.

  • Icybubba
    Icybubba 18 days ago

    Top 10 anime crossovers

  • Adam Esmat
    Adam Esmat 19 days ago

    his dog was looking while the soup came down when it hit he was like peace out yo

  • iAmRed
    iAmRed 19 days ago

    9:55 doggo be like RUN!!!!

    WILDFIRE 19 days ago

    it looks like a scimitar

  • boss bot
    boss bot 19 days ago

    Help him with the iron man project

  • Joseph Gauthier
    Joseph Gauthier 19 days ago

    maybe look into using flux. I believe calcium fluoride is a good one to use. Look up "The Gayest Person on TVclip" he has some pretty interesting thermite videos.

  • Agent Ham
    Agent Ham 19 days ago +1

    0:24 So what you're saying is that it’s a piece of cake to bake a pretty cake
    , if the way is hazy
    , you gotta do the cooking by the book. You know you can’t be lazy!

  • Rjected
    Rjected 21 day ago

    Is that a mid drive electric bike I see in the background? Specs?

  • Ryan griffith
    Ryan griffith 23 days ago

    Light on fire!!!

  • theifofmemes
    theifofmemes 23 days ago

    This... this is kermit the frog as a perso

  • Justice405
    Justice405 24 days ago

    The video is cool

  • Justice405
    Justice405 24 days ago

    I think the mad scientist is running out of ideas

  • Swapna Das
    Swapna Das 25 days ago

    Go kill ur self

    • Swapna Das
      Swapna Das 25 days ago

      I mean you're killing yourself by doing that

  • rainywitchcraft 1234
    rainywitchcraft 1234 25 days ago

    And he should make the blade red hot because thermite explodes

  • rainywitchcraft 1234
    rainywitchcraft 1234 25 days ago +1

    Yessssssss I subbed to both and I'm watching this in 2018 so the hacksmith did use thermite

  • Mr.Steve witherd
    Mr.Steve witherd 26 days ago

    You are ready for the zombie apocalypse

  • Abhi Gamer
    Abhi Gamer 27 days ago +1

    What? with THERMITE

  • Krishnan Bijikumar
    Krishnan Bijikumar 28 days ago

    Pour liquid nitrogen in molted iron

  • Innocent Heart
    Innocent Heart Month ago


  • Alana Banana2
    Alana Banana2 Month ago

    U can now be the Fruit Ninja with that sword

  • xXCod2SwagKillerXx
    xXCod2SwagKillerXx Month ago

    NICE if you were to suggest a sword to Zombie Go Boom for a shoutout and cash you would win cuz that thing is sharp as all heck

    (or just order a ivan head from their store lel)

  • Seagrams SmokeAlot
    Seagrams SmokeAlot Month ago

    Been looking for this video for awhile awesome guys

  • Toolband42O
    Toolband42O Month ago

    Music ruined the video, next time please don't use garbage like that.

  • Airsoft, nerf And gaming

    Wait so u use flower when making thermite?

  • Sai Sairam
    Sai Sairam Month ago

    can u cook meth mr backyard scientist?

  • Ben Chambers
    Ben Chambers Month ago

    So awesome

  • Chislon The Noob
    Chislon The Noob Month ago

    Did I see a Hacksmith in the back ground at 1:30?????!?!

    AJ DONNER Month ago

    All that carbon dioxide is making me sweat. You need to be a steward of creation mate.

  • R.R. NationTV
    R.R. NationTV Month ago

    Lol I never seen half a video collab before

  • Anjayl
    Anjayl Month ago

    *" say if you subsituted gluten free flour for regular flour, your cake is probably not gonna taste that good"*
    Ignorance is bliss they say.

  • Mikey Nielsen
    Mikey Nielsen Month ago

    Can you make a dagger made out of tungsten? (Also, please use the barking dog reaction in a different video)

  • Jakub Czajkowski
    Jakub Czajkowski Month ago

    8:29 With this you earned my respect.

  • Fox Charlie 86
    Fox Charlie 86 Month ago

    dude... when was the last time you you actually did sleep?

  • TheSnarpyOne
    TheSnarpyOne Month ago

    5:33 looks like a nuke.

  • My randomness is doctrine

    Make something out of melted mica

  • Muddypups
    Muddypups Month ago

    make a spark shooter and or rifle

  • SomeRandomGuy
    SomeRandomGuy Month ago

    How is wasting vegetables not wasting food. Vegetables are food to vegetarians and vegans.

  • Top Nepper 2000
    Top Nepper 2000 Month ago

    When you mix fuel, metal oxide and metal powder in just the right way, it burns at two thousand degrees Celsius. Hot enough to cut through nearly any barrier known to man. Throw some C4 into the mix…and you’ve got one hell of a combination.

  • Drake Darren Wilson

    Need to make ice sword and bullet proof phone

  • Daniel Lee
    Daniel Lee Month ago

    Hey how about combining the fire paint and the sword to make a lighting up sword that can cut through metal? >:DDDD MWHAHAHA luv ur vids mate

  • Jusonomous
    Jusonomous Month ago

    yall are terrible actors

  • Mr_SlimeWorm
    Mr_SlimeWorm Month ago

    Put table salt in your pool

  • Ilham FTn
    Ilham FTn Month ago

    That's great

  • Jacob Valentine
    Jacob Valentine Month ago

    Dear god. Im so bad with Chemistry. Everything he said went way over my head. Im definitly a physics person. 😂

  • Connor Hill
    Connor Hill Month ago

    "Smolten steel"

  • Jedi Jr. Jesus
    Jedi Jr. Jesus Month ago

    Did this dude really just bring on a guest to simply stand around for a minuit or so and then leave after have done nothing?

  • Gooeygamer 9000
    Gooeygamer 9000 Month ago

    weres the water mellon

  • Sergios
    Sergios Month ago

    5:34 Mini nuke explosion

  • Andy Rosene
    Andy Rosene Month ago

    I'm planning on doing this same thing, but a scythe.

  • Moldy Muffin
    Moldy Muffin Month ago

    it resulted in 175 gram *reads 176*

  • DerpsDaBookworm
    DerpsDaBookworm Month ago

    oh wow if a robber tries his house, they're unlucky.. XD he has so many weapons (OF SCIENCE!!)

  • Sebastian Lauinger
    Sebastian Lauinger Month ago

    Don’t worry I’m not wasting food it’s vegetables Lol

  • Gennifer Bridget Ti'ana Maher

    Did that writer's block return?

  • Mena Playz
    Mena Playz 2 months ago +1

    What I am hearing is..


  • TheBarbaricTain
    TheBarbaricTain 2 months ago

    At 2:23 wtf is up with your eyes?!

  • Wetduckling Personal Channel Personal Channel

    Do something with hacksmith please

  • The exterminator
    The exterminator 2 months ago

    I had a deja vu bout this

  • Purple Bundle
    Purple Bundle 2 months ago

    am I the only one who thinks he looks like dirk nowitzki?

  • Mike Sokolow
    Mike Sokolow 2 months ago

    I guess mom and dad gave up on having a decent driveway.

  • Xbax Logan 420
    Xbax Logan 420 2 months ago

    Physics is a mysters
    *Chops pumkin from the down up*
    *Gets cut into perfect 4s*

  • Silver wolf
    Silver wolf 2 months ago

    Backyard scientist: talks science
    Leaf: hey watcha doing?

  • The Electron 108
    The Electron 108 2 months ago +1

    Hey Kevin, did you die?

  • TripodsForMe
    TripodsForMe 2 months ago

    Man I want a sword now.....

  • CrazyCatYT
    CrazyCatYT 2 months ago

    I tried it and I had to get my hand amputated

  • Madman7771 8
    Madman7771 8 2 months ago +1

    3 way him you and your gf/wife

    ULTRA MANIA 2 months ago

    What is wrong with your eyes (not trying to be mean just FYI)

  • Ultra Rexy
    Ultra Rexy 2 months ago


  • The Mini Yosshi
    The Mini Yosshi 2 months ago

    Death by suop

  • The Mini Yosshi
    The Mini Yosshi 2 months ago

    3:44 Thanks Leaf

  • Zo Bez
    Zo Bez 2 months ago

    8:02 !?!?

  • Hex Nerve
    Hex Nerve 2 months ago

    i've think he's dead.

    • Hex Nerve
      Hex Nerve 2 months ago

      sorry, i thunk he's dead

  • Bryan Jones
    Bryan Jones 2 months ago

    Has anyone ever told you that you like coop 772

  • InfamousSampai
    InfamousSampai 2 months ago

    Friendship ended with Molten aluminum. Now thermite is my best friend.

  • andremmerch merch
    andremmerch merch 2 months ago

    That's a simicar or some thing but do a mother colab

  • Mency Mitmug
    Mency Mitmug 2 months ago

    What if you put molten lava in a phone

  • Beben Suteja
    Beben Suteja 2 months ago

    You can make a sword out of liqid

  • Starks Laraway
    Starks Laraway 2 months ago +1

    BACKYARD MANS! Do you know Evan Chan

  • MasterPhoenixHQ
    MasterPhoenixHQ 2 months ago

    5:35 if it was in the backyard really with ants is going to make giant precuals to ants and kill soo many ants making a hiroshima or nagasaaki type of blast in the ants

    • MasterPhoenixHQ
      MasterPhoenixHQ 2 months ago

      and know is little creatures see things slowly if is a thing in a massive mass compared to the living creature but not too much diference

    • MasterPhoenixHQ
      MasterPhoenixHQ 2 months ago

      but just if is close to a ant-populaded place and if the thing was in the ground

  • Giahoa Nguyen
    Giahoa Nguyen 2 months ago

    Those kids tho

  • Astro Illogica
    Astro Illogica 2 months ago

    throws blowtorch next to thermite

  • Jay Buzzton
    Jay Buzzton 2 months ago

    Does it chop better than a normal sword? If not still pretty cool

  • Rizky Damar Dwiantoko
    Rizky Damar Dwiantoko 2 months ago


  • Nikey_Boy
    Nikey_Boy 2 months ago


  • MaddestMike
    MaddestMike 2 months ago

    Such a cool sword!! :D

  • Juan Aguilar
    Juan Aguilar 2 months ago

    5:56 the kid has hard nips

  • Micharltheslayer 32
    Micharltheslayer 32 2 months ago

    Make a thermit axe

  • Gage Bublitz
    Gage Bublitz 2 months ago

    hey, can you make a sword that turns into an ax?