(Encyclopedia) Newcomen, Thomas nyoo´kmn, nyookm´n, 1663–1729, English inventor of an early atmospheric steam engine (c.1711). It was an improvement over an earlier engine patented (1698) by… (Encyclopedia) Mérida m´rä, city (1990 pop. 523,422), capital of Yucatán state, SE Mexico. It is the chief commercial, communications, and cultural center of the Yucatán peninsula. Founded (1542)… (Encyclopedia) Grand Coulee Dam koo´l, 550 ft (168 m) high and 4,173 ft (1,272 m) long, on the Columbia River, N central Wash., NW of Spokane; built 1933–42 as a key unit in the Columbia basin… (Encyclopedia) white-eye, common name for warblerlike, arboreal birds, including 85 species in the family Zosteropidae, and for certain species of ducks. The members of Zosteropidae, with the… Source: National Marine Fisheries Services' Northeast Fisheries Science Center
The most often quoted estimate is 20,000. There may be as many as 20,000 more.
Which is the oldest type of… Source: National Marine Fisheries Services' Northeast Fisheries Science Center
They are the same species. A soft-shell crab is one that has just discarded its shell. Crabs that have just… (Encyclopedia) hydraulic machine, machine that derives its power from the motion or pressure of water or some other liquid.
Water falling from one level to a lower one is used to… From Adrenaline to the Zipper See also Famous Firsts in Aviation, Nobel Prizes.Adrenaline:(isolation of) John Jacob Abel, U.S., 1897.Aerosol can:Erik Rotheim, Norway, 1926.Air brake:George…