soap
rallain | April 7, 2010Check out this video demo:
So, that is just plain water. If I am careful, I can make that thin aluminum disk stay on the surface of the water. This is not the same as floating in Archimedes principle. It is different. This is staying on the surface because of surface tension.
Bouyancy
I think my best explanation of buoyancy was in the post about MythBusters floating a lead balloon. But, basically for buoyancy there is an upward force from the water on the thing that is floating. If I want to explain this in terms of the particle model of a gas or fluid, I could say that the particles in…
bioephemera | April 29, 2009Let etsy seller foliage help you fight swine flu with this bagful of handmade soaps in "skin-ish colors"!
I vascillate between finding them cute, and thinking they resemble a crowd of damned souls reaching out for help from my soap dish. Weird.
Dedicated to John O., who truly appreciates disembodied hands. Via DailyArtMuse.