Posterous theme by Cory Watilo

Filed under: programming

Boats and Turtles...

Emma asked a great question this week, "Why do boats float?"  I said "Great question!"  Then I started to ramble about buoyancy and realized I had no coherent explanation myself.  So I googled it, then she and I performed experiments.  In a nutshell, the way I explained it to her is:

  1. Things put in water displace the water.  (Good examples were of her in the bath tub.)
  2. For something to float, it must displace the same amount of water, in weight, as itself.

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