How Pins Float on Water: VVIDEO/DVD, An ordinary straight pin is heavier than a piece of tissue paper. Why does the paper sink to the bottom of a tank of water while the straight pin floats on top? Surface tension is the answer, and Bob Symes illustrates this principle with several easily repeatable experiments.


			How Pins Float on Water

An ordinary straight pin is heavier than a piece of tissue paper. Why does the paper sink to the bottom of a tank of water while the straight pin floats on top? Surface tension is the answer, and Bob Symes illustrates this principle with several easily repeatable experiments. (8 minutes)

ORDER CODE: FFMBVL1659V
VHS VIDEO

ORDER CODE: FFMBVL1659DVD
DVD