(Encyclopedia)
CE5
Electrical and radio symbols
electricity, class of phenomena arising from the existence of charge. The basic unit of charge is that on the proton or electron—the proton's…
(Encyclopedia) locomotive, vehicle used to pull a train of unpowered railroad cars.
Richard Trevithick, a British engineer and inventor, built and operated (1803–4) the first successful steam…
(Encyclopedia) glass, hard substance, usually brittle and transparent, composed chiefly of silicates and an alkali fused at high temperature.
Glass has become invaluable in modern architecture,…
(Encyclopedia) Franklin, Benjamin, 1706–90, American statesman, printer, scientist, and writer, b. Boston. The only American of the colonial period to earn a European reputation as a natural…
(Encyclopedia) wind, flow of air relative to the earth's surface. A wind is named according to the point of the compass from which it blows, e.g., a wind blowing from the north is a north wind.
The…
Bob Dylan
See also African-American Musicians African-American Visual and Performing Artists Asian American Artists and Musicians Hispanic-American Musicians and Visual Artists Women…
(Encyclopedia)
CE5
Tennis court
tennis, game played indoors or outdoors by two players (singles) or four players (doubles) on a level court.
In 1900 the international team competition known as…
