Word: ironing
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Dates: during 1920-1929
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...Electrical Engineering Department of the Harvard Engineering School, at the present time, is engaged in the study of the properties of electrical insulation. As is well known, electrical engineering involves the use of three types of materials: conducting materials such as copper and aluminum; magnetic materials such as iron and steel from which magnets are made; and insulating materials such as rubber paper, cotton, oils, porcelain, and other similar materials which have the property of insulating the electric circuit. It is only by employing insulating materials that electric currents can be made to flow in the electric conductors. Otherwise, they...
...properties of conducting materials are very well known and there has been no substantial improvement in these materials during the past thirty or forty years. Also, magnetic properties of iron and steel are very well known; although some special magnetic alloys have been developed recently which have unusually high magnetic qualities with low degrees of magnetism...
...famous Iron Man trophy, annually awarded to the winning foils team, was captured by the Navy, in spite of the vigorous efforts of the Yale team to repeat their last year's victory in this division. The Midshipmen will also receive a new trophy, the gift of which was made public today, consisting of crossed blades and a mask on a pedstal. In the individual contests, Captain F. S. Righeimer of Yale, though closely pressed by D. I. Modell '30 of Harvard, distinguished himself as victor in both foils and epee. The individual sabre title was won by Frederick Giddings...
...Meteorites are of three main types: siderites. metallic; aerolites, stony; siderolites, mixed stone and metal. The Southwest Africa meteorite is 90% iron, 10% nickel...
...many years ago in U. S. industry that business was thought of largely in terms of great basic commodities. Iron, steel, leather, lumber, copper, flour-these and similar staples constituted almost the entire structure of U. S. industry. That they still remain the backbone, the foundation, of industry is undeniable. Yet many of today's most successful industrial enterprises, remarkable both in their size and in their earnings, belong to the nonessential classifications...