How Many Stars Are There in the Galaxy?
Clip: Episode 2 | 1m 55s Video has closed captioning.
The volunteers are given a spoon of sand with 50,000 grains. Each grain of sand represents a single star. They try to guess how many stars there are in the galaxy and then use the spoon of sand to create a pile of stars with their estimate. How big will the pile of sand be and how close will it be to the actual number of stars in our galaxy?
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Problems Playing Video? | Closed Captioning