Friday, June 22, 2007

New Thing #89: Goo Sensation



I forget how we got on the subject, but the other night, Kevin was telling me about non-Newtonian substances, which are neither liquid nor solid. Oobleck, made out of cornstarch and water, is one of them. So tonight, with Kevin's help, I made and played with Oobleck. The websites we found all gave different instructions about the porportions, but it doesn't really matter. You can start with one part water and two parts cornstarch, then add any amount of either according to what you want to do with it. Being neither liquid nor solid means that a substance can be picked up in pieces, but as soon as it becomes stationary, it oozes back into a liqiud. If you throw it, it turns into liquid in the air. If you roll it between your palms, it's a solid until you stop rolling it, then falls in drips. It's fascinating and mesmerizing and made us feel like very smart 10-year-olds.

1 comment:

beth said...

Oobleck is so fun! I got a chance to play with it in March, and linked to a hilarious Spanish game show where contestents ran across a pool of it. http://bookishbiker.vox.com/library/post/catching-up-technology-and-non-newtonian-fluids.html (or: http://tinyurl.com/yvb5rv )