Word: coaling
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Dates: during 1920-1929
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...Rays. Several speeches set forth the new usefulness of X-rays in studying the crystal structures of pearls, limes, asbestos, butter, wax, etc. The X-ray studies of C. Norman Kemp in England on coal and coke cited, praised. X-raying of the structure of rubber, which is amorphous (noncrystalline) when unstretched and develops fibre-crystals when stretched at various tensions, was noted as a likely road to the discovery of how to make synthetic rubber...
...little known anthracite coal deposits of Rhode Island and Massachusetts will furnish local coal to New England this winter, said Arthur Dehon Little, Cambridge, Mass., research chemist last week. The New England anthracite is very difficult to burn and contains 33% ash. But after treating by the "Trent" process it can be made low in ash, free burning and smokeless...
Edward of Wales visited a coal mine in Lancashire, donned miner's garb, descended 400 feet, pecked at coal strata with a pneumatic drill, emerged dirty-faced...
...members of the American Society for Testing Materials (A.S.T.M.) went to French Lick, Ind., last week for their 25th annual convention. There, in haunts usually filled by politicians clandestinely trading their influences, testers frankly presented 80 reports and papers on various metals, cements, ceramics, paints, oils, petroleum products, timber, coal, coke, rubber, textiles...
Modern efficiency has given substantial blackboards, trim cabinets with brass locks, skylights and shrewd ventilating systems to the classrooms of U. S. public schools. But the "art objects" on the walls have changed little since the days of slates and coal stoves. Pupils are still schooled among lithographs of George Washington crossing the Delaware, paintings of cows and baskets of fruit, cheap etchings of Longfellow and Lincoln...