Tuesday, January 31, 2006

Air Pressure - Episode 4

Can-crushing, balloon-inflating, juice-box-drinking action in this study of air pressure: how it happens, what it is, and why.

Science Theater Episode 4: Air Pressure

Saturday, January 14, 2006

Protein Folding - Episode 3

Eggs turn white when fried because their protiens are unfolded by the heat. Much of your body is made of large molecules called proteins that can perform chemical reactions. Proteins are like long strands of pearls that can fold up into balls in order to their job. Changes in the environment (like heat) can change whether proteins fold.

Science Theater Episode 3: Protein Folding

*As an aside, my PhD thesis research focused on this very topic.

Thursday, January 05, 2006

Photons of Light - Episode 2

LEDs and photosensitive paper show light be a particle in this demonstration explaining how light comes in little "packets" that we call photons. Colored LEDs make phosphorescent paper glow only if their color (frequency) of light is high enough in energy.

Science Theater Episode 002: Photons of Light