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Knight's Mechanical Encyclopedia (ed. Knight) 6 0 Browse Search
Cambridge sketches (ed. Estelle M. H. Merrill) 1 1 Browse Search
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Knight's Mechanical Encyclopedia (ed. Knight), R. (search)
urmounting the elevation of 2,620 feet, the highest elevation above tide-water attained by that road at Altamont. When finished, this was considered a wonderful achievement; grades of 116 feet to the mile having been deemed insurmountable obstacles: now, however, they are considered but slight impediments, except so far as interfering with speed. The Union Pacific crosses the summit ridge of the Rocky Mountains at an elevation of 8,460 feet; and the highest point on the railroad between Arequipa and Puno in Peru is 14,586 feet above the sea. The length of the Panama Railway from the Atlantic to the Pacific Ocean is nearly 48 miles; the summit ridge is 287 feet above the mean tide of the Atlantic. The distance from New York to Hongkong via Cape Horn is more than 17,000 miles, but by this railway across the Isthmus it is less than 12,000, — a saving of 5,500 miles. This railway was opened in January, 1855. Starting from Aspinwall, on the Atlantic side, for Panama, on the Pacific
Knight's Mechanical Encyclopedia (ed. Knight), W. (search)
373 B. C.]. Eratosthenes himself says that he saw the place. — Strabo. The disaster occurred at night; the town was 12 stadia (12 × 202 1/3 yards.) from the sea. The territory was divided among the neighboring people. At Arica, the seaport of Arequipa, about twenty minutes after the first shock, all of which lasted but a few minutes, the sea was observed suddenly to recede and immediately afterward a wall of water, estimated to be 50 feet in hight, was seen advancing. This overwhelmed a largh the greater part of its inhabitants, carrying ships far inland. None, however, have probably equalled in their hight, or in the extent for which they have been traced over the earth's surface, that which accompanied the terrible earthquake at Arequipa a few minutes after 5 P. M., on the 13th of August, 1868. At Callao the waters retreated considerably, but the return flow was much less severe in its effects. Irregular movements of the sea, however, continued for several days. In less t
Cambridge sketches (ed. Estelle M. H. Merrill), chapter 11 (search)
marked, and can be studied at leisure. The most interesting of all the photographic telescopes is the new Bruce telescope. This has an aperture of twenty-four inches, and is the largest photographic telescope yet made. The glass is by Alvan Clark of our city. This telescope has been in use now for more than a year, and it reveals stars that never have been seen by the eye, even in the largest telescopes. It is designed to send the Bruce telescope, eventually, to the station at Arequipa, Peru. This station is an integral part of Harvard Observatory. Situated high in the Andes, it possesses unrivalled meteorological advantages. The air is wonderfully clear and pure. Add to these natural advantages the fact that it is almost the only observatory in the southern hemisphere, and its importance will be appreciated. The Bruce telescope will be an important addition to its facilities. The photographs are stored in a commodious building where a gifted woman, Mrs. Fleming, wit