Musical instruments are grouped into families based on how they make sounds. In an orchestra, musicians sit together in these family groupings. But not every instrument fits neatly into a group.…
The world's notable passenger, fighter, bomber, experimental, and spy planes by David Noland Passenger Planes Boeing 707 The world's first successful commercial jetliner Boeing 747…
Source: The facilities listed are members of, and accredited by, the American Zoo and Aquarium Association (AZA) to ensure that they are maintaining professional standards. The AZA also accredits…
These books were chosen by a committee of librarians, educators, and other professionals for the Association for Library Service to Children. Younger Readers…
Oliver Wendell Holmes (1902-1932)The Supreme CourtGreat Minds of the CourtJoseph Story (1811-1845)Oliver Wendell Holmes (1902-1932)Louis Brandeis (1916-1939)Benjamin Cardozo (1932-1938)Hugo…
(Encyclopedia) Lavoisier, Antoine LaurentLavoisier, Antoine LaurentäNtwänˈ lōräNˈ lävwäzyāˈ [key], 1743–94, French chemist and physicist, a founder of modern chemistry. He studied under eminent men…
(Encyclopedia) revolution, in a political sense, fundamental and violent change in the values, political institutions, social structure, leadership, and policies of a society. The totality of change…
(Encyclopedia) barrow, in archaeology, a burial mound. Earth and stone or timber are the usual construction materials; in parts of SE Asia stone and brick have entirely replaced earth. A barrow built…
(Encyclopedia) cotingacotingakōtĭngˈgə [key], any of the New World tropical birds of the family Cotingidae. Cotingas range from N Argentina to the southern border of the United States; most are…
