(Encyclopedia) relay, electromechanical switch operated by a flow of electricity in one circuit and controlling the flow of electricity in another circuit. A relay consists basically of an…
(Encyclopedia) IsinIsinĭsˈĭn [key], capital of an ancient Semitic kingdom of N Babylonia. The city became important after the third dynasty of Ur fell to the Elamites and the Amorites (c.2025 b.c.).…
(Encyclopedia) StresaStresastrāˈzä [key], town (1991 pop. 4,684), Piedmont, N Italy, on the western shore of Lake Maggiore. Its lovely gardens and villas and the scenic Borromean Islands nearby have…
ABUNDANCE OF WATERDRINKING WATERHYDROGEN BONDFIND OUT MOREThe simple combination of two hydrogen atoms and one oxygen atom creates a water molecule (H2O). Water is the most common compound on…
The Bombings of Hiroshima and Nagasaki August 6 and 9, 1945 by Ben Snowden At 2:45 in the morning of August 6, 1945, an American B-29 bomber flew north from Tinian Island in the Marianas…
Speed and Distance Problems
Algebra
Whipping Word Problems Interest Problems Area and Volume Problems Speed and Distance Problems Mixture and Combination Problems
Have you ever heard of a…
Source: U.S. Dept. of the Interior, Geological Survey According to the theory of continental drift, the world was made up of a single continent through most of geologic time. That continent…
Sources: NASA and the International Astronomical Union. News Flash (August 24, 2006)—Pluto Demoted! Read About It Here. Misleading reports that Pluto was about to lose its status as a planet in…
