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comment by RicePaddy
RicePaddy  ·  3363 days ago  ·  link  ·    ·  parent  ·  post: Who wants to solve some Fermi Questions?

Looks like I'm going first:

"What does an African elephant weigh, measured in units of electrons?"

I remember from secondary school an electron weighs something times 10^(-28) grams. So let's say 5*10(^-31) kgs.

I had no idea how much an African elephant weighs, so let's call it 1500 kilos.

Divide one by the other, I got 3*10^(33)

And 10^33 was the right answer... That was lucky as hell...