Interesting Materials

Here is a nice list of videos and articles about crazy materials, like: dilatants (the cornstarch and water stuff), auxetics (they grow fatter when stretched, instead of thinner), superfluids (frictionless fluids that will even flow into anything), ferrofluids (fluids that can be controlled by magnetic fields), and of course, dry ice.

Why a Car on Skis Only Jumps So Far

Popular Science wondered what a Mini Cooper on skiis being propelled by rockets would do going down an Olympic ski jump.

Liquid Armour

This is an interesting video of kevlar that has been treated with a liquid that hardens upon agitation -- making bullet-proof clothing that is only slightly heavier than standard clothing.