#2 Ice Bucket Challenge
A few months ago, Ice Bucket Challenge was in trend. It was a simple challenge where the challenger pours a bucket full of icy chilled water over him/her to raise money. Till now, everything sounds right but just imagine what will happen if the same challenge is performed using liquid nitrogen instead of ice or icy water!!!
Sounds interesting, isn't it? Tipping a bucket of freezing liquid nitrogen over you might not seem like the best idea. But that's exactly what this young scientist has just done. Moe Qureshi, is a chemist at the University of Toronto, and to prove he understands a thing or two about science, he tipped the liquid, which has a temperature of -196 degrees, over his head. But after pouring the liquid on him, what happened with Qureshi? Check out the video on the next page to see everything yourself...
#1 The Video
-196 degree is very chilling. This stuff is so cold that it can give you instant frostbite and can even kill you. Luckily for Moe, a clever piece of science stopped him from being turned into a human snowman. It's called the Leidenfrost effect, and is a phenomenon in which a liquid, in near contact with a something significantly hotter than its own boiling point, produces an insulating vapor. In short bursts, this insulation can actually prevent you from being harmed by the freezing liquid. And, if you know what you are doing, it's possible to dip your hand in a bucket of liquid nitrogen without damaging your fingers. However, this stunt is still incredibly dangerous, so DO NOT TRY THIS AT HOME. Check out the video now...
