What Are Water Towers For?
Water towers are nothing more than simple elevated tanks of water. Water towers provide storage and help keep a town’s water pressure high at all times....
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What Is a Black Hole in Space?
One of the strangest mysteries of outer space is a “black hole.” A black hole is a place in space where gravity is very strong as the matter is squeezed into a tiny...
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What Causes the Ocean Tides?
What Causes the Ocean Tides? The rise and fall of the tides are caused mainly by the pull of gravity from the moon on the earth’s waters. The moon pulls up the...
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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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How Did the Solar System Begin?
How Did the Solar System Begin? To this day, the birth of our solar system remains a mystery. Scientists believe that some 4.6 billion years ago, a vast cloud of dust...
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