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What is spontaneous combustion?

February 18, 2017 | Author: | Posted in Science

Spontaneous combustion is the ignition of a combustible material without the application of external heat or flame. The self-generated heat produced by cotton soaked in oil and confined in a poorly ventilated room sometimes becomes sufficient to ignite the cotton. Fires started by spontaneous combustion are common in coal mines, owing chiefly to the rapid oxidation …

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How long do elephants live?

February 17, 2017 | Author: | Posted in Zoology

It is difficult to obtain accurate information as to the extreme age reached by elephants in the wild state. There is no positive evidence that an elephant has ever lived more than seventy or seventy-five years either in captivity or the wild state, although it is supposed that occa­sionally one may live to an age …

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What is New Jersey tea?

February 16, 2017 | Author: | Posted in History

New Jersey tea is the popular name of Ceanothus americanus, a white-flowered plant that grows abundantly in the northeastern part of the United States. The name arose from the fact that the Indians and early settlers, particularly in New Jersey, used the plant to make a drink. From the roots, which contain a red coloring …

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What is meant by cleaning the Augean stables?

February 15, 2017 | Author: | Posted in History

Augeas (pronounced aw-jee-us) was a legendary king of Elis in Greece who possessed a herd of three thousand sacred oxen whose stalls had not been cleaned for thirty years. The cleaning of these stables in a single day (as the sixth of the twelve difficult and dangerous labors imposed upon Hercules by Eurystheus, King of Argolis. …

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Who were the druids?

February 14, 2017 | Author: | Posted in History

The druids were the priests, bards, prophets and wise men among the ancient Celts in Gaul, Britain and Ireland. Owing to their practice of teaching orally and forbidding any written records very little is known about them. All their ritual and teachings were committed to memory. Besides expounding religion the druids were magicians and astrologers …

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What is the Grand Bank?

February 13, 2017 | Author: | Posted in Zoology

The Grand Bank is a great shoal in the Atlantic Ocean lying about one hundred miles off the southeast coast of Newfoundland and famous throughout the world as a fishing ground. Bank in this connection means an undersea elevation that produces a shoal, shelf or shallow. The Grand Bank is also variously called Grand Banks, …

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What is a drumhead court-martial?

February 12, 2017 | Author: | Posted in Military

Any summary trial is now sometimes called a drumhead court-martial. Originally the name was given only to a summary and hasty court-martial called to try an offense committed on the battlefield or during a march. Most of the forms and ceremonies are dispensed with on such occasions; in other words, it is a kind of …

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What are rhinestones?

February 11, 2017 | Author: | Posted in Jewelry

Rhinestones are artificial colorless gems of high luster and cut to imitate diamonds. Their chief use is in the manufacture of cheap jewelry and accordingly false jewelry itself is sometimes referred to as rhine­stone. Rhinestones were so named because they were first made along the Rhine River of a composition known as strass, which was …

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What is meant by Plimsoll’s mark?

February 10, 2017 | Author: | Posted in General Knowledge

Plimsoll’s mark consists of a disk and letters painted in white on the outside of a British ship’s hull to indicate the limit to which the vessel may be loaded at various seasons in salt and in fresh water. It is, in other words, a “load line.” Plimsoll’s mark was named for Samuel Plimsoll (1824-1898), …

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Is a zebra a light animal with dark stripes or a dark animal with light stripes?

February 9, 2017 | Author: | Posted in Zoology

The ground color of the body of a zebra is a pale, yellowish brown and the stripes are black or dark brown. When the zebra and the ass are crossed the light tan predominates as the basic body color in the offspring. Therefore, in reply to this proverbial question, it may be said that the …

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