Close

Backyard Scientists T-Shirts! Limited Edition campaign, buy one now! - http://shop.crowdmade.com/collections/backyardscientist/

OMG im on GoPro! https://www.youtube.com/watch?v=r3RGO... my fire sword!

I made a freeze ray! Im basically a bonafide evil genius now. Freeze your cat, girlfriend, or flowers, the possibilities are endless..! wait no, thats about it. PS before Jeopardy thinks about suing me for using their music, remember who has the freeze ray now! Kevin: 1 - Alex: 0
Some notes about the gun:
There are commercial liquid nitrogen guns used by dermatologists to freeze warts and skin cancer off. The guy that sells me liquid nitrogen was telling me about them. he says they have a pressure release valve that keeps the pressure at around 70psi. The problem is its hard to make a thermos thats also pressure rated because you have a pressure on the inside of the flask, then a vacuum directly on the other side. They are fragile and expensive. I tried to put a nichrome heating element inside the thermos to increase pressure, but it ended up not working that great. shaking the thermos made way more pressure!

YOU MAY LIKE
Fire-Saber and Other Awesome Experiments!

3 mini experiments rolled into 1 nice video! Its been raining all week, so I got to stay in and play with my new camera! I made a Fire-saber, and I re...

Pouring Molten salt into Water - Explosion!

Backyard Scientists T-Shirts! Limited Edition campaign, buy one now! - http://shop.crowdmade.com/collections/backyardscientist/ What we made - Explod...

How strong is Oobleck?

Backyard Scientists T-Shirts! Limited Edition campaign, buy one now! - http://shop.crowdmade.com/collections/backyardscientist/ Check out my collabor...

Will a Shovel Stop a Bullet???

Want to look AMAZING? Well then check out our store, cuz that's what we do!!! http://www.ranchmerch.com Watch me vlog. http://www.youtube.com/offthe...

Bart Simpson Megaphone Challenge!

Thanks 23andme for sponsoring my video :) Get your own kit at https://www.23andme.com/Backyard Ive always wondered what would happen if you lined up 1...

Propane Rifle

Aloha fellow scientists! Have you ever seen anything so cool? So after watching NightHawkInLight's video I knew I had to do this. It was easy to do, ...