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weightlessness
(Encyclopedia) weightlessness, the absence of any observable effects of gravitation. This condition is experienced by an observer when he and his immediate surroundings are allowed to move freely in…The Auroras
The “northern lights” (Aurora borealis) as well as the “southern lights” (Aurora australis) are upper-atmosphere phenomena of astronomical origin. The auroras center around the magnetic (not…Geology of the Grand Canyon: Chapter V. The Toroweap And Uinkaret.
CHAPTER IV. THE GREAT DENUDATION.CHAPTER VI. THE KAIBAB.CHAPTER V. THE TOROWEAP AND UINKARET.The present chapter will contain an account of a journey from the village Kanab to the Toroweap…apheresis
(Encyclopedia) apheresisapheresisəfĕrˈəsĭs [key], or hemapheresishemapheresishēˌməfĕrˈəsĭs [key], any procedure in which blood is drawn from a donor or patient and a component (platelets, plasma, or…jumping mouse
(Encyclopedia) jumping mouse, rodent slightly larger than the common mouse, found in North America and N Asia, also called the kangaroo mouse. Its long hind legs and tail enable it to leap distances…Plata, Río de la
(Encyclopedia) Plata, Río de laPlata, Río de larēˈō ᵺā lä pläˈtä [key], estuary, c.170 mi (270 km) long, SE South America, formed by the Paraná and Uruguay rivers. Between Argentina and Uruguay, the…Susquehanna
(Encyclopedia) SusquehannaSusquehannasəskwĭhănˈə [key], river, 444 mi (715 km) long, rising in Otsego Lake, at Cooperstown, N.Y., and zigzagging SE and SW through E central Pa. to Chesapeake Bay near…Coughlin, Charles Edward
(Encyclopedia) Coughlin, Charles EdwardCoughlin, Charles Edwardkŏgˈlĭn [key], 1891–1979, Roman Catholic priest in the United States, b. Ontario, Canada, grad. Univ. of Toronto, 1916. After study at…Bronfman, Edgar Miles, Sr.
(Encyclopedia) Bronfman, Edgar Miles, Sr. 1929–2013, Canadian-American business executive and philanthropist, b. Montreal, grad. McGill Univ. (1951). He was the eldest son of Samuel Bronfman, 1889–…Stern, David Joel
(Encyclopedia) Stern, David Joel, 1942–2020, American basketball executive, b. New York City. A lawyer, he worked (1966–78) as outside counsel to the National Basketball Association (NBA) before he…Trending
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