Wednesday, April 29, 2009
The Boy, On Scientists
My hero is a scientist. Every day they mak EXITING discoveries. They also make AWESOME potions, space probes and cool new ships. They launch rockets and space ships. I like it when the Space Shuttle goes up. It always makes me think of the scientists who made it. Scientists are really cool!
Potions and space probes. That's my boy!
(Portable as a flame-sealed melting point capillary containing a pinhead of iodine. Interesting contrast beteen evacuated and air-filled capillaries).
Demo #2: find a diaper from a friend with a small child. Cut off a square of the absorbent part. Add a little water and watch how much it swells. Add some more water. Add still more. Modern diapers are remarkable.