(Encyclopedia)
CE5
Worldwide pattern of earthquake activity: The dots indicate the epicenters of all earthquakes recorded during a recent 10-year period.
CE5
earthquake, trembling or shaking…
(Encyclopedia) Mercury, in astronomy, nearest planet to the sun, at a mean distance of 36 million mi (58 million km); its period of revolution is 88 days. Mercury passes through phases similar to…
(Encyclopedia)
CE5
Continental drift (arrows indicate the directions of motion of the landmasses)
A. Proposed reconstruction of the supercontinent Pangaea indicating the major present landmasses
B…
(Encyclopedia)
CE5
The trigonometric parallax of a star, expressed by the angle θ, is a measure of its apparent motion against the background of more distant stars as a result of the earth's…
WHAT ARE SPACE STATIONS USED FOR? HOW ARE SPACE STATIONS BUILT? INTERNATIONAL SPACE STATIONFIND OUT MOREIn a space station, a large crewed spacecraft orbiting Earth, astronauts can live and work in…
(Encyclopedia) Oklahoma, University of, mainly at Norman, state supported; coeducational; chartered 1890, opened 1892. The schools of medicine and nursing, with hospitals and a research foundation,…
(Encyclopedia) Daniel, book of the Bible. It combines “court” tales, perhaps originating from the 6th cent. b.c., and a series of apocalyptic visions arising from the time of the Maccabean emergency…
Who's Who in the Lord of the Rings From Aragorn to Ring Wraiths by Laura Hayes The Lord of the Rings is epic in scope and features a host of characters. Here are the most…
