Genius by Stephen Hawking

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?

Aired: 05/17/16

Rating: TV-G

Problems Playing Video? | Closed Captioning

Thinking Like a Genius

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Thinking Like a Genius

Explore video that delves into how to think like the greatest geniuses in history and solve some of humanity's most enduring questions. Material for Grades: 6-13+

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