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
  • Runtime: 10:09
  • Thermite  sword  science  make  diy  

Comments: 3 923

  • Vex KilledUFirst
    Vex KilledUFirst 6 hours ago

    When gamer think of thermite they think of Tom Clancy’s Rainbow Six Siege

  • Vex KilledUFirst
    Vex KilledUFirst 6 hours ago

    When gamer think of thermite they think of Tom Glances Rainbow Six Seige

  • Mike Magnus
    Mike Magnus 17 hours ago

    flammable paint is blocked, and yet the ability to form your own sword isn't?
    Go home YouTube, you're drunk.

  • Andres Reyes
    Andres Reyes 21 hour ago

    They looked so awkward Jajaja

  • Axe-man Stroth
    Axe-man Stroth Day ago

    You know with all the awesome homemade weapons you make I don’t think intruders will step a foot in your house

  • Đăng Pattrick
    Đăng Pattrick 2 days ago

    Can you make a katana out of thermite pls ?

  • Dank Human
    Dank Human 2 days ago

    The backyard blacksmith

  • Rachel Bazilian
    Rachel Bazilian 2 days ago

    I'm high key shook he just bashed gluten free flour like that. Gluten free flour doesnt make a taste difference but if youre making dough, you need extra yeast and stuff.

  • Vilho Ääri
    Vilho Ääri 2 days ago +1

    4.34 that blowtorch hates him :D

  • IceSpiky
    IceSpiky 3 days ago

    Im not wasting food ''it's vegatable''

  • Creepaminer
    Creepaminer 3 days ago

    The doggo was so curious and then it got so scared, poor doggo, still funny though 😂

  • Evan capozzi
    Evan capozzi 4 days ago

    Looks like an Orc blade. Cool vid

  • Kenneth Ponteras
    Kenneth Ponteras 4 days ago

    Make a Destiny gun that fires thermite in the next collab with Jacksmith

  • Sawmill Survival
    Sawmill Survival 5 days ago

    Love the leaf at 3:40 "Hey...watcha doooin'?"

  • Steven Lewis
    Steven Lewis 6 days ago

    You scared the doggo

  • Austin Beaty
    Austin Beaty 6 days ago

    I don't get it

  • Christiaan Gelderblom

    2:23 Damn your eyes bro

  • SnickleFrits Pickle
    SnickleFrits Pickle 6 days ago

    "no problem at all" almost throws his shoulder out lol. great content man.

  • Luke Peters
    Luke Peters 7 days ago

    Not wasting soup, it's vegetables? I thought for sure you were a vegan

  • Luke Scantling
    Luke Scantling 7 days ago

    You and James should pour molten aluminum into each other's urethras and see what it looks like

  • Haris Tv
    Haris Tv 8 days ago

    He spoke so fast I got lost half way through lol

  • Caidon Leamy
    Caidon Leamy 8 days ago

    did he say the la croix was a can of soda?? no no no la croix is an abomination

  • Aidan McGuire
    Aidan McGuire 8 days ago

    Lacroy crap is gross

  • General Grey
    General Grey 8 days ago

    Dang this is really cool man

  • coryinthecellar
    coryinthecellar 8 days ago

    He almost got

    S O U P E D

  • Raziq Kasyfi
    Raziq Kasyfi 9 days ago


  • Arrial Davenport
    Arrial Davenport 9 days ago

    Awesome! You're so cool lol I didn't know there was that much creativeness in the world lol

  • Vishnu Shenoy
    Vishnu Shenoy 9 days ago

    Seriously?? You think vegetable is not food???

  • Belnick6666
    Belnick6666 9 days ago

    sooooo how many angry parents did you have knocking at your door after the girls ran home and said you had a burning volcano in the garden ? :P

    DRAGON BORN 10 days ago

    Now I want one

  • Dreamcastknight
    Dreamcastknight 10 days ago

    Got a question.
    What would be the result of a thermite reaction in a blender?
    Or some way to agitate the thermite would it make the reaction more energetic?

  • Atomic_Science
    Atomic_Science 10 days ago

    My thermite tastes fine with gluten-free Black Iron Oxide

  • London Land
    London Land 11 days ago


  • Pork Invaider621
    Pork Invaider621 11 days ago

    Sub at pork invaider621 because it’s my birthday

  • Mcgamer
    Mcgamer 12 days ago

    Can you try to light it it on fire?

  • The #6 Runaway Guys Fan

    Do you live in Hawaii? Because your YouTube greeting starts with "aloha" (which is the old Hawaiian way of greeting and parting with someone), and you mentioned you have palm trees in your backyard.

  • My Tube
    My Tube 13 days ago

    9:36 that face is weird

  • Tiger Ice
    Tiger Ice 14 days ago +3

    ok vegies are not food

  • Ben Lam
    Ben Lam 14 days ago

    He said he's not wasting food and uses vegetables as an excuse of not wasting food. Boi!

  • You think it we make it

    8:56 dog be like oh hell no

  • Marcel Steinle
    Marcel Steinle 14 days ago

    At end: Fruit Scientist ninja :D

  • Andrew Kingsman
    Andrew Kingsman 15 days ago

    I wanted more hacksmith

  • Kid Decent
    Kid Decent 15 days ago

    8:25 lol

  • Asa Hamada
    Asa Hamada 15 days ago

    Ooh a molten metal gun on the hacksmiths batmobile would be soo epic

  • FuzzyMc Flufferson Fartsalot

    Poor molten iron on a bowlingball

  • No.
    No. 16 days ago +1

    The dog at 8:55 looks traumatized

  • ZedgeTheLlama
    ZedgeTheLlama 16 days ago

    You must really hate Lowe’s

  • SJcrown _YT
    SJcrown _YT 17 days ago

    Bro u too smart 4 me

  • Yan Tan
    Yan Tan 17 days ago

    Is it possible to make glass sword?

  • SoCheddar Cheese
    SoCheddar Cheese 17 days ago

    8:54 your dogs reaction

  • Leah Willis
    Leah Willis 17 days ago

    That propane torch was so close to the thermite that spilt out

  • Good E101
    Good E101 18 days ago

    Mix thermite with play doh

  • Sid Krueger
    Sid Krueger 18 days ago

    "Im not wasting food... it's vegetables!"

  • The Beast
    The Beast 18 days ago

    Absolutely awesome. Love your channel, bro.

  • Toby Fructoise
    Toby Fructoise 18 days ago

    3:43 Da leaf wants to be in the vid with ya

  • Justin tyme
    Justin tyme 19 days ago

    I was worried when he lit the Thermite on fire, it was going to spill onto the propane torch he laid down

  • Peter Smythe
    Peter Smythe 19 days ago

    You should make several and send one to Skallagrim or someone.

  • тнe Epιcoolαd
    тнe Epιcoolαd 19 days ago

    Finish watching a HackSmith video.
    See this video in recommendations.
    Click video.
    HackSmith shows up unexpectedly.
    YouTube finally recommended something I'd enjoy.

  • Ronak Prasad
    Ronak Prasad 19 days ago +1

    I was not expecting such was pretty amazing man 🙌🙌🙌

  • Emanuel
    Emanuel 19 days ago

    he is smart asl

  • Shane Keys
    Shane Keys 19 days ago

    Make a sword out of molten aluminum

  • pooter
    pooter 19 days ago

    Hey could you make a chefs knife out of thermite???🔪🔪🔪🔪

  • Ninjapekka9 9
    Ninjapekka9 9 20 days ago

    Try lightning liquid nitrogen on fire

  • immigration-control For-the-southern-border

    The sword that can take down a tower

  • 4cus Orbit
    4cus Orbit 20 days ago

    You need to rest

  • Robotech Gamer
    Robotech Gamer 20 days ago

    “Don’t worry I’m not waisting food, it’s vegetables.” lol. I was lmao when I heard that

  • RainbowzGamer
    RainbowzGamer 21 day ago

    8:54 poor doggo you were just curious

  • RainbowzGamer
    RainbowzGamer 21 day ago

    8:28 ~facepalms~ vegetables are still food

  • Trentin Eakins
    Trentin Eakins 21 day ago

    You should make a thermite gun

  • SuperT
    SuperT 22 days ago

    Heat it up and stab someone they just get incinerated

  • BoboSixx II
    BoboSixx II 22 days ago +1

    You should get two long flat shoe strings of different colors and wrap/braid the handle.
    It will look good and give you a better more comfortable grip.

  • Lil_Adi •3•
    Lil_Adi •3• 22 days ago

    K I L L M E P L Z ((o(*゚▽゚*)o))

  • Sylvanos
    Sylvanos 22 days ago

    I've been watching you for a few months and forgot to subscribe

  • Sylvanos
    Sylvanos 22 days ago


  • Troy Dreamer
    Troy Dreamer 23 days ago

    You should try to make a blood sword from adventure time

  • Shane Straub
    Shane Straub 23 days ago

    Build a electromagnetic launcher

  • Wertang
    Wertang 23 days ago

    im confused so he managed to wield a sword with THERMITE and not ignite it, how?

  • Mohamed Ravat
    Mohamed Ravat 23 days ago

    Cool sword. Why you wasting food

  • Exploding Squid
    Exploding Squid 23 days ago

    Sandwich vending machines that you choose what you get

  • Jacob Rucquoi
    Jacob Rucquoi 23 days ago

    You should send that sword to Skallagrim, he'd get a kick out of it.

  • zaco21
    zaco21 23 days ago

    Swords had 2-3 lbs. That looks like a falchion. If you are interested in swords look up scholagladiatoria on youtube.
    Also, vegetables or vegetable soup is still food. Basically you are wasting food. Now you can use those vegetables as natural fertiliser for your plants in the garden though.

  • Marble Swan
    Marble Swan 23 days ago

    Make a sword that heats up when you hit stuff.

  • questionare 123
    questionare 123 24 days ago

    Is that 80 Fitz
    Av the beghinging

  • peik hansen
    peik hansen 24 days ago

    You 2 should make tea together

  • Tyler Huston
    Tyler Huston 24 days ago +2

    That was badass! Kudos for letting those kids see it. I hope they are inspired by you.

  • Caleb Hill
    Caleb Hill 24 days ago +1

    thats awsome

  • slc308
    slc308 24 days ago

    you should try some thermite welding too.

  • Vintage_sledneck
    Vintage_sledneck 24 days ago

    I got scared when the termite was pouring out on the torch

  • z ALEX
    z ALEX 24 days ago

    Stop overthinking EVERYTHING

  • Ketching The Kipper
    Ketching The Kipper 24 days ago

    La. Croix isnt a soda I know because there is some in my fridge.i c dog go too

  • aCrazyStranger
    aCrazyStranger 24 days ago +4

    Being your neighbour would be awesome

  • killer foxes
    killer foxes 24 days ago


  • killer foxes
    killer foxes 24 days ago


  • Ozzy Styles
    Ozzy Styles 24 days ago

    I miss his videos. r.i.p. backyard scientist

  • DryLands People66
    DryLands People66 24 days ago

    I’ve never heard of bywightblalala is it a new gas discovery?

  • Gabriel sucks at gaming


  • Tylor Eleser
    Tylor Eleser 25 days ago

    hey backyard scientist i do not know if you will read this but if you do just know you are just great keep it up and try not to blow your place up

  • Void
    Void 25 days ago

    1:29 "why is the bottle of lighter fluid so close?" Famous last words

  • Toby Urquhart-Hay
    Toby Urquhart-Hay 25 days ago

    This guy looks like Hila Klein’s sister.

  • Цшддшфь Гркшп

    You should mix hydrogen chloride and potassium and see what happens. LIKE IF YOU AGREE