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Physics & Astronomy Facts


Saturn: The Basics

To ancient astronomers, Saturn was a wandering light near the edge of the known universe. The planet and its rings have been objects of beauty and wonder ever since Galileo noticed the 'cup handles' t ...
Golf Ball
Why Does A Golf Ball Have Dimples?

A golf ball can be driven great distances down the fairway. How is this possible? The answer to this question can be found by looking at the aerodynamic drag on a sphere without dimples (while it's fl ...
Northern Lights
Does Earth Have Its Own Neon Sign?

You might wonder what the Northern Lights and neon signs have in common. Actually, a lot! What makes luminous colors shimmer across the Northern sky? The answer is in the Sun. Charged particles ar ...

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