November 28, 2012

Why Dinosaurs Had a 23-Hour Day

Kylie Andrews, ABC Science


AP Photo

The 24-hour clock is locked into our mammalian biology, our technology and our culture. But it hasn't always been that way.

The length of an Earth day has been increasing slowly throughout most of the Earth's 4.5-billion-year history, says Dr Rosemary Mardling, mathematical scientist at Monash University, and it all has to do with the Moon.

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TAGGED: Dinosaurs, Earth's Rotation

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