YouTuber Grant Thompson, The King of Random, recently posted this video on how to make your own batch of dry ice at home. The process requires a food-safe CO2 fire extinguisher (which he got for free at a local fire equipment servicing company) and a pillow case. The result is the solid form of carbon dioxide, which can be used for halloween effects, science experiments, or driving an engine. [via Gizmodo]
Matt Richardson is a Brooklyn-based creative technologist, contributing editor for MAKE magazine, and co-author of Getting Started with Raspberry Pi. He's also the owner of Awesome Button Studios, a technology consultancy. Highlights from his work include the Descriptive Camera (a camera which outputs a text description instead of a photo) and The Enough Already (a DIY celebrity-silencing device). Matt's work has been featured at The Nevada Museum of Art, The Rome International Photography Festival, Milan Design Week and has garnered attention from The New York Times, Wired, and New York Magazine.
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i didn’t know, wouldn’t have guesed that one could get away with touching dry ice with their hands like that! I thought it would have been instant frostbite!
Believe it or not dry ice is pretty safe to handle as long as you don’t leave it in one place for too long. The CO2 is evaporating so fast it creates kind of barrier around it, like the old trick of spraying hairspray on your hand and lighting it on fire. You can even eat dry ice as long as you don’t keep it in one place in your mouth, and constantly move it around. Tastes like super cold carbonated ice!
What you are describing Ryan is known as the Leidenfrost effect. I occurs when there is a large temperature difference between 2 objects. You can even pour liquid nitrogen on your bare skin and providing you don’t let it sit there you will be fine. It is extremely neat/interesting.
But don’t swallow
http://darwinawards.com/personal/personal2000-25.html
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