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radar
(Encyclopedia) radar, system or technique for detecting the position, movement, and nature of a remote object by means of radio waves reflected from its surface. Although most radar units use…seafloor spreading
(Encyclopedia) CE5 Schematic model of the oceanic crust, showing seafloor spreading seafloor spreading, theory of lithospheric evolution that holds that the ocean floors are spreading outward…constellation, in astronomy
(Encyclopedia) CE5 Constellations: Southern sky CE5 Constellations: Southern sky CE5 Constellations: Southern sky constellation, in common usage, group of stars that appear to form a…electric circuit
(Encyclopedia) CE5 A. Series circuit: Current is the same through each resistance; voltage divides in direct proportion to each resistance. B. Parallel circuit: Voltage drop is the same over each…transmission
(Encyclopedia) transmission, in automobiles, system of parts connecting the engine to the wheels. Suitable torque, or turning force, is generated by the engine only within a narrow range of engine…Percy Bysshe Shelley: The Revolt of Islam, Canto 4
by Percy Bysshe Shelley Canto 3 Canto 5 Canto 4 The old man took the oars, and soon the bark Smote on the beach beside a tower of stone; It was a crumbling heap, whose portal dark With…The 1972 Miami Dolphins' Perfect Season
by Michael Morrison Miami Dolphins coach Don Shula is carried off the field after defeating Washington 14-7 in Super Bowl VII, completing the only perfect season in NFL history. In 1972…A Mixed Bag
The family of Maum Agnes (seated), a former Ball slave. When this photograph was taken in about 1920, they were among the last sharecroppers on the Ball plantation of Quenby…The Journals of Lewis & Clark: Clark, July 4, 1804
Day 106 Day 108 Clark, July 4, 1804 July 4th Wednesday ussered in the day by a discharge of one shot from our Bow piece, proceeded on, passed the mouth of a (1) Bayeau lading from a large…The Journals of Lewis & Clark: Lewis, September 19, 1805
Day 897 Day 899 Lewis, September 19, 1805 Thursday September 19th 1805. Set out this morning a little after sun rise and continued our rout about the same course of yesterday or S. 20 W.…Trending
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