Friday, March 18, 2011

Maimon Schwarzschild

Suppose you wanted to show your chemistry pupils how many molecules there are in a few teaspoonfuls of water?  You might bring sand to class, one grain of sand for each molecule.  How much sand would you need?  A science master at Westminster School takes us through the calculations.

Hint: If you have a jar of decorative sand at home, it's probably not enough.

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Maimon Schwarzschild


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