How Far Away Is the Horizon?
The distance to the horizon, the imaginary line where the sky seems to meet the earth, depends on how high our eyes are above the level of the land we are looking...
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Why Do Golf Balls Have Dimples?
Why Do Golf Balls Have Dimples? Most golf balls have between 300 to 500 dimples, though the pattern, depth, and number vary significantly between different...
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Could Man Made Satellites Cause an Eclipse?
Could Man Made Satellites Cause an Eclipse? The planets and the moons have long, tapering shadows pointing away from the sun and the biggest of them have the biggest...
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How Fast Does Light Travel?
How Fast Does Light Travel? Light travels very fast. In just one second, it goes 186,282 miles (229,792 kilometres), and at this speed takes about eight minutes to...
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Why Do Mexican Jumping Beans Jump?
Why Do Mexican Jumping Beans Jump? A jumping bean’s movement is caused by a larva, or caterpillar, wriggling around inside it. The “beans” are...
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