Why Do Compressed Air Cans/Gas Dusters Get REALLY Cold?

This video is about compressed air cans (aka gas dusters) and why they get cold when you spray them. They cool off because the refrigerant inside (1,1-difluoroethane) is under pressure and boils off when the pressure lowers, and energy lost to the latent heat of vaporization cools the can a lot. Difluoroethane normally boils at […]

Migration Pattern of 118 Different Species (Animated Graph)

For those of you who still don’t know, Geeks Are Sexy is a Canadian-based website. So after our crazy winter, it is a gentle relief to see the terrifying geese reappear, finally indicating the end of this white, freezing hell. It left us wondering just what distance these aggressive little things actually travel. Our friends […]

Why Are So Many People Allergic To Food? [Science Video]

More people have food allergies than ever before. Peanuts, tree nuts, shellfish, eggs, and even milk… the list of possibly dangerous foods seems to get longer every day. But why do some people’s bodies have deadly reactions food? And why are food allergies on the rise? In this video we explain what food allergies really […]