In the Middle of the Night
A man wakes up at night in the pitch dark. He knows that on his bedside table are a razor, a watch, and a glass of water. How can he reach
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Objects
What Is BASE Jumping and Who Invented It?
In 1978, filmmaker Carl Boenish, Jr., along with his wife, Jean, and friends Phil Smith and Phil Mayfield, climbed to the top of El…
What Is a Papier-mâché?
What Is a Papier-mâché? The name papier-mâché alternatively, paper-mache, is French and means “chewed paper”. Although the art of making articles of papier-mâché, beautifully…
Why Are U-bends Used in Plumbing?
U-bend pipes are installed under sinks and toilets to provide a water seal against the outside sewer pipes. The U-bend retains a permanent p
What Is the Law of Inertia?
Hundreds of years ago, scientists made simple observations and believed that the natural state of an object was to be at rest. It seemed o