Word: copper
(lookup in dictionary)
(lookup stats)
Dates: during 1930-1939
Sort By: most recent first
(reverse)
This excellent conduit consists essentially of two copper tubes with copper wires running through the centre of each, the whole sheathed in lead. The current travels on the inside wall of the tubes, the outside skin of the wires. Whereas ordinary telephone trunk lines have booster stations at least every 50 miles, serviced by human attendants, the coaxial cable has automatic booster stations every ten miles, accessible through manholes if repairs are needed...
...country's copper & brass fabricators are operating at 95% capacity. Steel production in the last two months exceeded the figures for October and November 1929, and the year's output of some 47,000,000 tons will not be embarrassingly short of the 1929 total (56,000,000 tons...
...something for me to see. Two long flights of creaky stairs. Down a corridor. A sharp turn to the left, and in a small door, where the most peculiar pile of wood and metal I ever saw. Large box-like things around the room; men working with copper wire at little tables. An air of order and quiet. S--informs me these are the studios of the Harvard Forest. Laughing lightly at my quizzical look, he adds that the Harvard Forest is no playground for freshmen, but woods in Petersham, Mass. For years the late Professor Fisher has directed...
...princess lay on her back with her head to the north. Most of the mummy and its wrappings had disintegrated, but the head was well preserved. With the skeleton were bracelets, anklets, two necklaces of gold and a copper girdle, a gold headdress with streamers of copper and gold. Atop the sarcophagus was an ala baster headrest, shaped like a crescent moon on a pedestal (see cut). Professor Hassan found four sculptured gold fingers, searched for six more gold fingers and ten gold toes. Director John A. Wilson of Chicago's rich Oriental Institute called Chephren's daughter...
...form of a central steel mast round which are wrapped two spiral staircases, braced like a camera by a quadruped of four iron pylons. On this framework the whole weight of the statue hangs. Not bronze is Liberty's skin but hand-hammered sheets of pure copper about the thickness of a silver dollar. Each sheet is anchored to an iron strap, tied with iron girders to the central skeleton (see cut). Even the nearby Black Tom explosion of 1916 did not shake it. In 50 years it has not sagged, cracked or corroded...