Wednesday, November 27, 2013

Which is larger: The number of atoms in a single grain of sand, or the number of stars in the universe?

For the answer (more accurately, thoughtful conjecture) to that and another similarly fascinating question (and answer), click here.  As an enticement, here's an excerpt from this really fun io9 post:
Carl Sagan is famous for saying there are more stars in our Universe than there are grains of sand on all the beaches on Earth. But is this actually possible? It's an awesome question — and a great excuse to do some math.
 So click over, follow the relatively simple math, and enjoy!