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One fact about yawning

man yawning

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The custom of covering the mouth when yawning is derived from the Middle Ages belief that this prevents the devil from entering the body.

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How does a thermometer work?

The thermometer on your wall is a glass tube with a silvery or red or blue line inside. The silvery line is a liquid called mercury. Si...

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THE ONE DOLLAR BILL

The United States one-dollar bill is the most common denomination of US currency, totaling 45% of all bills ($1, $2, $5, $10, $20, $50 and $100) produced. There are about 2 billion $1 bills in circulation.

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Himalayas

In the whole world there are only five mountains more than five miles high. They are all in the Himalayas. Mt. Everest is the highes...

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What is a depressant?

A depressant is a drug that reduces the activity of various body functions. Some depressants such as anesthetics, sedatives, antiepileptics, narcotics analgesics, and some muscle relaxants, slow nervous and muscular activity by acting on the central nervous system. Tranquilizers are depressants that affect only part of the nervous system. They induce relaxation without causing total depression.

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Facts about birthstones

Facts about birthstones

Did you know? The current assignation of stones to months was established in 1912

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