Common Knowledge and General Knowledge Series #21

Aristarchus of Samos was a Greek astronomer who lived in the 200’s B.C. He was the first to state that the earth revolves around the sun.

Aristocracy is a high social class that often used to include the government leaders of a state or nation.

Aristotle (384-322 B.C.), a Greek philosopher, educator, and scientist, was one of the greatest and most influential thinkers in Western culture.

Arithmetic gives us the answers to questions such as “How many?” “How much?” “How long?” and “How far?” It helps us find short, easy ways of solving problems with numbers.

Arius (A.D. 256-336), was a priest of Alexandria, Egypt, who founded an early Christian theological view called Arianism.

Ark usually refers to the vessel that sheltered Noah and his family during the Deluge (great flood) described in the Bible.

Ark of the Covenant was a sacred wooden chest described in the Bible as representing God’s presence.

Arlberg Tunnels are two tunnels–one a railway tunnel and the other a motor-traffic tunnel–in western Austria between the provinces of Vorarlberg and Tyrol.

Arm is the upper limb of a human being.

Armadillo is any of several small American mammals with bony plates in their upper body skin.

Armageddon is a Greek word taken from the Hebrew Har-Megiddo, which probably means Mount Megiddo.

Armature is the coil of wire in which electric current is produced in an electric generator.

Armour is a covering used primarily for protection in battle.

Arms, or coats of arms, are designs which are used to honour and distinguish certain persons or institutions.

Army is the branch of a nation’s armed forces that is trained to fight on land.

Arnica is the name of about 45 kinds of plants of the Northern Hemisphere that yield a juice used to drive away the blood that collects in bruises.

Arrest is the act of taking a person into the custody of the law and depriving the person of liberty.

Arrhythmia is an abnormal heart rhythm.

Arrowroot is the common name for several plants that are cultivated in nearly all tropical countries.

Arsenic is a semimetallic chemical element.

Arson is the crime of intentionally burning a building or other property.

Art and the arts. In a broad sense, art is skill in making or doing.

Art deco, also called style moderne, was a style of design that became popular during the 1920’s and 1930’s.

Art Gallery of New South Wales, in Sydney, Australia, was established by the government in 1875.

Art Institute of Chicago is a public museum of art and a cultural and educational centre in the United States.

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A.Sulthan, Ph.D.,
Author and Assistant Professor in Finance, Ardent fan of Arsenal FC. Always believe "The only good is knowledge and the only evil is ignorance - Socrates"
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