(Encyclopedia) Ertl, GerhardErtl, Gerhardgĕrˈhärt ârˈtəl [key], 1936– German chemist, b. Stuttgart, grad. Univ. of Stuttgart (1961), Technical Univ., Munich (Ph.D 1965). After holding a number of…
HYDROTHERMAL VENTSBIOGRAPHY: MARIE THARP American, 1920-FIND OUT MOREJust a century ago, the ocean floor was largely unknown. Now we know that the deep oceans have features such as mountains,…
For the most outstanding juvenile books in the U.S.: one award for outstanding fiction, one for outstanding nonfiction, one for outstanding illustration (since 1976); given by the Boston Globe…
What is a tsunami? The phenomenon we call tsunami is a series of large waves of extremely long wavelength and period usually generated by a violent, impulsive…
OCEAN LIFE SUNLIT ZONE TWILIGHT ZONE DEEP-SEA ZONE WHY IS THE SEA SALTY? WHAT CAUSES THE OCEAN CURRENTS? OCEAN FLOORWAVESFIND OUT MOREEarth’s five oceans (the Pacific, Atlantic, Indian, Southern…
(Encyclopedia) Thomson, Sir Charles Wyville, 1830–82, Scottish naturalist, noted as a marine biologist and deep-sea explorer. He participated in three deep-sea dredging expeditions (1868–70) and…
(Encyclopedia) Mariana Trench or Marianas Trench,Marianas Trench,mârˌēănˈəz [key], elongated depression on the Pacific Ocean floor, 210 mi (338 km) SW of Guam. It is the deepest known depression on…
(Encyclopedia) Baade, WalterBaade, Waltervälˈtər bäˈdə [key], 1893–1960, German-born American astronomer. From 1919 to 1931 he was on the staff of the Hamburg observatory; from 1931 to 1958, at the…
Journey to the Center of the Earth For forty years, scientists have attempted to drill deep into the ocean’s crust, an enterprise promising significant insight into the planet’s geological history…
