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A lot of things spin – bike wheels, footballs, hard disks in your computer, and even the Earth – they’re all twirling around. Spinning things have inertia, which means they keep spinning unless something slows them down. Bike tires keep spinning until you put on the brakes. A football spirals through the air until you catch it. The Earth keeps on spinning 24 hours a day, seven days a week. It’s been spinning for over four billion years.
First Air Date : Sep 10, 1993
Last Air date : Jun 20, 1998
Episode : 100 Episode
Season : 5 Season
Runtime: 26:14 minutes
Studio: PBS
Country: United States of America
