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See also:BACHE, See also:ALEXANDER See also:DALLAS (1806-1867) , See also:American physicist, See also:great-See also:grandson of See also:Benjamin See also:Franklin, was See also:born at See also:Philadelphia on the 19th of See also:July 18o6. After graduating at the See also:United States Military See also:Academy at See also:West Point in 1825, he acted as assistant See also:professor there for some See also:- TIME (0. Eng. Lima, cf. Icel. timi, Swed. timme, hour, Dan. time; from the root also seen in " tide," properly the time of between the flow and ebb of the sea, cf. O. Eng. getidan, to happen, " even-tide," &c.; it is not directly related to Lat. tempus)
- TIME, MEASUREMENT OF
- TIME, STANDARD
time, and as a See also:lieutenant in the See also:corps of See also:engineers he was engaged for a See also:year or two in the erection of See also:coast fortifications. He occupied the See also:post of professor bf natural See also:philosophy and See also:chemistry in the University of See also:Pennsylvania in 1828—1841 and in 1842—1843. For the trustees of what in 1848 was to become See also:Girard See also:College, but had not yet been opened, he spent the years 1836-1838 in See also:Europe, examining See also:European systems of See also:education, and on his return published a very valuable See also:report. In 1843, on the See also:death of Professor F. R. Hassler (1770-1843), he was appointed
See also:superintendent of the United States coast survey. He succeeded in impressing See also:Congress with a sense of the great value of this See also:work, and by means of the liberal aid it granted, he carried out a singularly comprehensive See also:plan with great ability and most satisfactory results. By a skilful See also:division of labour, and by the erection of numerous observing stations, the mapping out of the whole coast proceeded simultaneously under the See also:eye of the See also:general director, and in addition a vast See also:mass of magnetic and meteorological observations was collected. He died at See also:Newport, Rhode See also:Island, on the 17th of See also:February 1867.
End of Article: BACHE, ALEXANDER DALLAS (1806-1867)
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