Why do zits always form in the middle of the forehead?

Acne, a red, irritating skin rash, that mostly affects children approaching puberty, usually appears in the oil-producing areas of the body. These include the face (forehead, nose, and chin), chest, and back. Hyperactive glands produce oil (sebum) at a faster than normal pace due to tweens’ rapid changes in hormone levels. Excessive oil clogs pores and creates acne, or pimples. Many times hair—which hangs down onto the forehead or sides of face—contains grease-like gels and styling products that contribute to acne.

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Why is a private detective called a “private eye”?

In 1850, the Pinkerton Detective Agency opened in Chicago with the slogan “We never sleep,” and its symbol was a large wide-open eye. Pinkerton was very effective and criminals began calling the feared operation “the eye.” Raymond Chandler and other fiction writers of the 1930s and 1940s simply embellished the underworld expression by introducing “private eye” as a description for any private investigator.

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Why is going to bed called “hitting the hay”?

When going to sea, early sailors had to provide for their own bedding. This need was catered to by merchants on the docks who, for a shilling, sold the seamen crude canvas sacks stuffed with hay. When heading off to sleep, a sailor would announce that he was going to “hit the hay.” Although less crude than those coarse canvases, early North American settlers also used hay to stuff mattresses and pillows, so when going to bed, they too would “hit the hay.”

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Why do we call prostitutes “hookers”?

It’s a myth that the camp followers of Union General Joseph Hooker gave us the popular euphemism for a prostitute. It’s true they were called “Hooker’s division,” or “Hooker’s reserves,” but the word predates the American Civil War as, of course, does the profession. It first appeared in 1845 as a reference to an area of New York known as “the Hook,” where ladies of the night could be found in abundance.

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How many different kinds of insects are there?

Insects are small creatures with three pairs of legs, a body with three main parts (a head, thorax, and abdomen), and a tough shell-like outer covering, called an exoskeleton. Insects are arthropods, which means they do not have a backbone. Most have one or two pairs of wings and a pair of antennae. There are 900,000 known species of insects in the world, and entomologists (scientists who study bugs) estimate that there are millions (perhaps up to 10 million!) more yet to be discovered. Insects are everywhere—there are more bugs in 1 square mile (2.59 square kilometers) of rural land than there are human beings on the entire globe. Insects are divided into 32 orders, or groups. The largest insect order is the beetles (Coleoptera) with 125 different families and approximately 500,000 different species. In fact, one out of every four animals on Earth is some type of beetle. In the United States, there are some 73,000 species of insects: approximately 24,000 beetles, 19,500 flies, 17,500 ants, bees, and wasps, and 11,500 moths and butterflies.

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Why in sports does the home team wear white while the visitors wear darker colours?

Early television was in black and white and the definitions weren’t nearly as precise as they are today. When the Canadian Broadcasting Corporation was testing for live hockey broadcasts in 1952, they found that if both teams wore their traditional colours, it was impossible to tell them apart. They solved the problem by having the home team wear white, while the visitors stayed in their darker uniforms.

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What is the difference between an alligator and a crocodile?

Alligators are slightly larger and more bulky than crocodiles. A wild alligator can reach up to 13 feet (3.9 meters) in length, and weigh up to 600 pounds (272 kilograms). Besides the two animals’ size difference, the easiest way to tell them apart is by their snout. A crocodile has a very long, narrow, V-shaped snout, while the alligator has a wider, U-shaped snout. The alligator’s wide snout delivers more crushing power to eat prey like turtles, which make up a large part of the animal’s diet. The crocodile’s upper and lower jaws are nearly the same width, so its teeth are exposed all along the jaw line in an interlocking pattern, even when its mouth is closed. An alligator, on the other hand, has a wider upper jaw, so when its mouth is closed the teeth in the lower jaw fit into sockets of the upper jaw, hidden from view. South Florida is the only known place in the world where crocodiles and alligators live together in the same area.

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What Polygraph instrument does?

Instrument that simultaneously records changes in physiological processes such as heartbeat, blood pressure and respiration used as a lie detector

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