Breaking into a massive 1000lb Safe with a Plasma Cutter7m37s

Breaking into a massive 1000lb Safe with a Plasma Cutter

Kevin Kohler, a.k.a. The Backyard Scientist, strikes again. His latest toy – a plasma cutter. Plasma cutting is a process that cuts through electrically conductive materials by means of an accelerated jet of hot plasma. Typical materials cut with a plasma torch include steel, stainless steel, aluminum, brass and copper, although other conductive metals may be cut as well. The machine uses air to push the plasma further through the material, resulting in a cut. As all good scientists go, Kevin starts by attempting to cut something that is non conductive, like a watermelon. The plasma only burns the rind from the outside and barely makes a hole. That wasn't a challenge enough for our Backyard Scientist, so next stop is to see what would happen if you ACCIDENTALLY burn yourself with the plasma gun. The plasma from the gun burns straight through a piece of steak, which means that you will probably need a big bandage in case you forget to put your gloves on. The this walls of the small apartment-size safe was no match for the plasma, so the real challenger comes from a jeweler's safe, weighing at almost 1000lb! The plasma cuts through the thick back wall in about 10 minutes, leaving the concrete padding to be crushed and the insides revealed. Unfortunately for Kevin, the previous owner emptied the entire vault, leaving only one copper penny from the 70s. What ever the booty was, this was one entertaining video!

Turn an old Oven into a Kiln7m47s

Turn an old Oven into a Kiln

Hey everybody, I’ve been busy the past two weeks! I had a great time at Playlist Live, and finished some much needed organization in my garage. I finally got around to building a large kiln to help me make investment molds for aluminum casting. Now I can finally get this laser gun built! Shoutout to Keystone Science! I couldn't find any info on any projects like this, so I thought I would have a try myself. I thought an oven would be the perfect platform, it already has a door, space for insulation, and comes with heating elements! The oven was almost exactly $270 to build, which is about $200 cheaper than a used kiln on craigslist. and 1/10 the cost of a new kiln. I could only get it to 820c - 1500f, Real kilns can get to 2300f. I think my kiln could get that hot if I wound my own heating elements with nichrome wire and added another layer of insulation. Oven - 40 Morter - 25 Ceramic Blanket - 120 Firebrick - 40 Temp control - 30 Everything else - 20 Materials: Insulating firebrick - GREENTHERM 26 LI High Temperature mortar - GREENPATCH-421 Cheaper mortar - Bio-Soluble Ceramic Blanket - Color temp changing lightbulb -

Rocket Powered Fidget Spinner4m45s

Rocket Powered Fidget Spinner

In the crazy era of fidget spinners, TheBackyardScientist made a giant rocket-powered fidget spinner, so you won’t have to! Kevin Kohler a.k.a. TheBackyardScientistgives his own spin to the fidget spinner craze by custom building a giant fidget spinner out of metal and gave it an extra feature, by adding rockets to each of the fidget’s sides, thus making it the ultra fidget spinner! He assembles his creation on a tripod and sets up a makeshift blast barrier, just in case. His wife is already there, waiting to see what will happen. This video shows just why every one of these videos comes with a disclaimer “do not try this at home”. Just when the spinner reaches speeds of over 5.000 rpm, two of the rockets break free, shooting shrapnel all over the scientist’s backyard, almost hitting his wife and definitely hitting his car! So there you have it. You can make a self-propelled fidget spinner, but it is not without consequences. Definitely don’t try this at home!

Giant Mouse Trap [Smashes Everything]6m19s

Giant Mouse Trap [Smashes Everything]

Ive got a bit of a Raccoon problem at my house… I built something to fix the problem. It breaks multiple local ordinances and a few international treaties, but I give you THE GIANT MOUSETRAP! It took over 3 weeks to build and cost around $360 to build, with the main expenses being the winch, and the

Bart Simpson Megaphone Challenge!7m12s

Bart Simpson Megaphone Challenge!

Thanks 23andme for sponsoring my video :) Get your own kit at Ive always wondered what would happen if you lined up 10 megaphones in a row and yell into them, today I put that idea to the test! That literal feedback loop was crazy loud! Crash Zone - https://www.yout

Bouncy Liquid Metal3m22s

Bouncy Liquid Metal

Hey everybody! Sorry i've been SO busy moving. I don't even have internet yet :O I saw this video online, and wanted to try it out for myself. Hope you enjoy! Original Video inspiration -

What happens when you put 20,000 volts into a Watermelon?6m08s

What happens when you put 20,000 volts into a Watermelon?

What happens when you pump 20,000 joules into a watermelon? Two words. Pink Mist. After trying to blow up a watermelon with a smaller capacitor, my friend coyt brought over 4 capacitors rated at 20kv and 25uf each. They came from a lab that used to them to simulate the effects of lightning on materi

Can a Magnesium fire be put out?4m50s

Can a Magnesium fire be put out?

Magnesium is a pretty cool thing. It's the ninth most abundant element in the universe and fourth most common on our planet. The coolest thing about magnesium is that it can be used as an emergency fire starter because it has a low melting point. A magnesium fire burns bright and it's virtually inextinguishable, so don't try this next experiment at home! Chemistry is a fun subject, but you need to take a lot of precautions. The Backyard Scientist will take that burden off your shoulders by showing you how magnesium ignites, how bright magnesium fire is and how to extinguish it. He tries covering the fire with dry ice, which is basically frozen CO2, but the fire takes it's sweet time to go out, since magnesium fire draws the oxygen from the CO2. Don't try to put it out with water either! It will cause an explosion that looks really cool in slow-mo, but it may cause additional damage. The best way to put out a magnesium fire is to cover it in sand, in order to smother the fire by removing it's O2 source! Are you a science junkie? Share this video with your friends to educate them on the effects and dangers of a magnesium fire.

150 mph Rocket Knife7m51s

150 mph Rocket Knife

I recreated my favorite MythBusters experiment and tried to chop a car in half with a Rocket Knife. I also tried to chop a chicken, steak, and fruits in half! Next week.. RED HOT ROCKET KNIFE! ...after my burns heal ;) I can't recommend Williams channel enough! -

1000 degree Red Hot Rocket Knife6m29s

1000 degree Red Hot Rocket Knife

You knew it was coming! Back at it agin with the Rocket Knife, but this time im going full sellout ;) 1000 degree, 150mph knife vs Coke, Silly-String, Bread, Wood, Bricks, and Lighters! You all gave me so many good ideas last week, I had to try some more. The rocket track is going on the shelf for

Deadly stink gas from Etch-A-Sketch?? (Hydrogen Sulfide!)8m01s

Deadly stink gas from Etch-A-Sketch?? (Hydrogen Sulfide!)

Today I teach you how to make Aluminum Sulfide, a chemical that releases Hydrogen Sulfide on contact with water. Its one of the smelliest compounds in the world, and you can make it with an Etch-A-Sketch and Sulfur! Plus you get to set stuff on fire to make it, aww yeah! I burned 100mmol (15g) of

iPhone in Molten Aluminum4m41s

iPhone in Molten Aluminum

Pick-a-Phone Giveaway: Brandon's Video On Brandon's channel, he runs a lot of "creative durability tests", a.k.a. destroying iPhones in cool ways. In this video, watch as an iPhone is truly destroyed for good in Terminator 2 style, in a vat of molten metal. The metal is so hot that it looks like lava. Check out the insane transformation the iPhone goes through! In yet another of his epic adventures with molten aluminium, Brandon and his guest take us on a journey of destroying an iPhone in a matter of seconds. If you thought nothing beats this monster gadget, see what happens near the end of this video. Molten aluminium oxide near the melting temperature is roughly 2/3 tetrahedral (i.e. 2/3 of the Al are surrounded by 4 oxygen neighbors), and 1/3 5-coordinated, very little (<5%) octahedral Al-O is present. Around 80% of the oxygen atoms are shared among three or more Al-O polyhedra, and the majority of inter-polyhedral connections are corner-sharing, with the remaining 10–20% being edge-sharing. The breakdown of octahedra upon melting is accompanied by a relatively large volume increase (~20%), the density of the liquid close to its melting point is 2.93 g/cm3. We're dying to know if the phone was good for use! Do not try this at home. Facebook: Instagram: Twitter: Website:

Red Hot Cannonball Vs Styrofoam Tower5m49s

Red Hot Cannonball Vs Styrofoam Tower

Thanks to Casper for partnering with me! Go to and use code backyard for $50 towards any mattress purchase! My girlfriend's channel - SandraSays Facebook:

Pop Champagne with SCIENCE6m01s

Pop Champagne with SCIENCE

Science is a cool subject to explore, but some of the experiments just aren't safe to do at your own home. That is why the Internet is filled with videos of both professionals and enthusiasts pushing the boundaries of safety as they demonstrate various science experiments, so you don't have to! Cue Kevin Kohler a.k.a. TheBackyardScientist! What would we do if it weren't for him? The guy has shown us how magnesium burns and whether you can put it out, he has even got on the fidget spinner craze train and showed us what a rocket powered fidget spinner looks like. These experiments of his were quite dangerous, so it is better to just open TheBackyardScientist channel here on and watch them from the safety of your own couch. This video is somewhat safer, though it might hit you on the pocketbook pretty hard. Kevin uses an ultrasonic cleaning device to see how various fizzy drinks will react, in comparison to, say the Coke and Mentos experiment. The ultrasonic cleaner creates bubbles through a process called cavitation, and the bubbles together with the mechanical vibrations in the water lift the dirt from the objects immersed, thus cleaning them. In fizzy fluids, however, it causes the CO2 to release quicker than normal, which in turn creates the canon effect. After a few tries with the open soda bottles, the time came for Kevin to test how the ultrasonic cleaner will open a bottle of champagne. Looks like the bottle was sitting in the heat of the sun for too long, so the first one didn't even get to be submerged in the cleaner. The second one almost got in the water, but the third one endured for nearly half a second, before popping the cork with incredible speed and bursting the delicious contents of the bottle up in the air. Chronos Kickstarter - Davids 'will it mow' channel Davids main channel - Lindsay Wilsons Channel - He has some really cool stuff!!

Best Fire Tornado - DIY - no moving parts!4m26s

Best Fire Tornado - DIY - no moving parts!

The best way to make a fire tornado (in my opinion!) All you need are 2 glass half-cylinders. No moving parts, no fans, no squeaky bearings, just fire and forget! Inspire to Make - Meteorite Ring somebody pointed out NightHawkinLight was the first to do m

Mercury Bottle Flip4m43s

Mercury Bottle Flip

Cody's lab also did a mercury water bottle flipping video, it's super cool check it out here! tesla500 - Destruction Channel - Website - Instagram - http

How to Make an Aluminum Foundry - Backyard Scientist3m55s

How to Make an Aluminum Foundry - Backyard Scientist

It was about time To make this video! p.s. Im going to blow up a pumpkin tomorrow :) Jace & Luke - My neighbors YouTube channel Website - Instagram -

2 Million Subscribers! We're all Scientists!7m07s

2 Million Subscribers! We're all Scientists!

Thanks everybody who watches my videos; you're awesome! end song neon trees - movin in the dark Heres a list of clips in order they appeared! Molten Salt Random Adventures Jim Isaac Films M

Ring of Fire - Most dangerous game ever!4m04s

Ring of Fire - Most dangerous game ever!

I was planning on just making a silly 'check this out' video, but people on my facebook page got me thinking! Its still a silly video, but now contains a pinch of science.. kinda ;) looks dangerous, but its not. Nothing in the vicinity is particularly flammable, and i have tall ceilings. The high v

DIY Rocket Powered Plane!5m55s

DIY Rocket Powered Plane!

Go to for your free trial today! Ive always wanted to attach rocket engines to a styrofoam plane, so I went to the hobby shop and bought all kinds of rocket engines! They come in sizes A, B, C, D, and E. Each step up is 2x as powerfull as the last. I also mad

Computer Duster + Water = EXPLOSION!?5m09s

Computer Duster + Water = EXPLOSION!?

T-SHIRTS - Ty's Video - High Speed Camera Rentals! - P.s. I got an Instagram -

Pool full of Orbeez Experiments!8m39s

Pool full of Orbeez Experiments!

Backyard Scientists T-Shirts! Limited Edition campaign, buy one now! - Marks Video- High speed camera rentals- Keep reading for more info below! -Commonly asked question

Molten Iron Vs. HUGE Magnet5m21s

Molten Iron Vs. HUGE Magnet

Backyard Scientists T-Shirts! Limited Edition campaign, buy one now! - Have you ever wondered what happens when you bring a magnet near 5000 degree molten Iron? Does it attract? Or repel? Maybe it create cool shapes. But most importantly... D

Liquid Nitrogen Freeze-Ray Vs. Flamethrower4m35s

Liquid Nitrogen Freeze-Ray Vs. Flamethrower

Backyard Scientists T-Shirts! Limited Edition campaign, buy one now! - OMG im on GoPro! my fire sword! I made a freeze ray! Im basically a bonafide evil genius now. Freeze your cat, girlfriend, or fl