Wednesday, August 28, 2013

Reason 20: Half Life, Half Right

We were going over half life, and one specific question resulted in a certain number of half lives.

Me: Ok, so after that amount of time, how much of the original mass should you have left?

Student: One thirty-tooth! *meaning 1/32*

Me: *Face/Palm* Your mother is weeping somewhere and she doesn't know why.

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