How Did Mark Twain Get His Pen Name?
Mark Twain is the pen name of Samuel Clemens. Although the exact origins of the name are unknown, it is worth noting that Clemens operated riverboats, and mark twain is...
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Why Do Rotten Eggs Float in Water?
Some people say that rotten eggs float on the surface of the water because the liquid matter inside the egg changes into the gaseous state. It is a myth because if...
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Where Does Beach Sand Come From?
The answer lies in a process called erosion. That’s the slow wearing away of an object by natural forces. In this case, the erosion of rock leads to the sandy beaches...
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What Is a Bending Pencil Experiment?
Why does a pencil during an experiment in water looks bent? The pencil appears to bend owing to refraction of light, when it passes through transparent materials. The...
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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 for the table and be sure to...
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