physical-geological model
51Universe — For other uses, see Universe (disambiguation). Physical cosmology …
52Water — This article is about general aspects of water. For a detailed discussion of its properties, see Properties of water. For other uses, see Water (disambiguation) …
53William Hopkins — Infobox Scientist box width = 300px name = William Hopkins image size = 200px caption = William Hopkins (1793 1866) birth date = birth date|1793|2|2|df=y birth place = Kingston on Soar, Nottinghamshire death date = death date and… …
54Hormesis — A very low dose of a chemical agent may trigger from an organism the opposite response to a very high dose. Hormesis (from Greek hórmēsis rapid motion, eagerness, from ancient Greek hormáein to set in motion, impel, urge on ) is the term for… …
55United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… …
56Elliott Cresson Medal — given to Emile Berliner in 1913 Presented by Franklin Institute Country US …
57Intergovernmental Panel on Climate Change — IPCC redirects here. For other uses, see IPCC (disambiguation). Intergovernmental Panel on Climate Change Org type Panel …
58Mercury (planet) — Mercury  ☿ …
59North America — North American. the northern continent of the Western Hemisphere, extending from Central America to the Arctic Ocean. Highest point, Mt. McKinley, 20,300 ft. (6187 m); lowest, Death Valley, 276 ft. (84 m) below sea level. 400,000,000 including… …
60Ionians (The) — The Ionians Malcolm Schofield THALES AND OTHERS The Greeks agreed that philosophy had begun with Thales. However they did not know much about his views.1 What survives is mostly a potent legend. Herodotus tells stories of his practical ingenuity …
