What Is a Whirlpool? How Does It Affect the Climate?
What Is a Whirlpool? How Does It Affect the Climate? A whirlpool is a body of swirling quickly rotating mass of water in a river or sea into which objects may be drawn,...
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How Does a Baseball Pitcher Throw a Curveball?
How Does a Baseball Pitcher Throw a Curveball? A successful major league batter gets a hit only thirty percent of the time he comes to bat. One of the ways pitchers...
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How Do Frisbees Fly?
How Do Frisbees Fly? When a Frisbee soars through the air, its spinning motion is what keeps it flying. Operating on the principle of an airfoil — any flying object...
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Why Don’t We Feel the Earth Going Around?
Why Don’t We Feel the Earth Going Around? We cannot feel the Earth rotating because we are moving with it. For example, if we are in a car which is moving at a constant...
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How Fast Does the Earth Spin?
How Fast Does the Earth Spin? The Earth is like a big ball, and it spins so as to turn around once every 24 hours. This means the surface of the Earth is moving pretty...
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