Word: conductor
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Dates: during 1950-1959
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Avco's apparatus, called a magneto-hydrodynamic (MHD) electric generator, works on the principle that any conductor of electricity that is moved through a magnetic field will generate in itself a current of electricity. This applies not only to copper wires (as in conventional generators), but to gases, which become conductors when they are made so hot that some of their atoms separate (ionize) into electrically charged particles. If forced through a magnetic field, a stream of ionized gas causes an electrical current to flow across it. This principle has been known for years, and many efforts have been...
...them will burn coal in a stream of compressed, preheated air. While passing through the flame, the air gets hotter, expands and rushes out of the furnace at high speed. A small amount of potassium chloride fed into it increases its ionization and makes it a better electrical conductor. Then the stream shoots into a hollow cone made of a heat-resisting, nonconducting material (see diagram). Electrical coils outside the cone create a strong magnetic field. As the gas speeds through, a powerful current of electricity flows across it and is collected by two electrodes inside the cone...
...year-old Vienna Philharmonic is a patrician among symphony orchestras. Others may be suaver, more brilliant, more impassioned, but no other orchestra brings to 18th and 19th century classics the same air of joyous spontaneity. Last week, under Conductor Herbert von Karajan, the orchestra arrived in Manhattan on a 40-day, six-country tour. At each of the concerts, the Viennese played Mozart-Eine Kleine Nachtmusik, Symphony No. 40-and to many listeners the effect was startling. Most Western orchestras play Mozart as if they remembered the 18th century only as the Age of Reason, give the music a cold...
...instrumentalists making their way to the stage of St. Louis' Kiel Auditorium ranged in age from 13 to 60. Some of them were housewives, others were students, disk jockeys, dentists, engineers. But when Guest Conductor Edouard van Remoortel rapped them to silence and led them into Beethoven's Egmont Overture, housewife and teen-ager played with astonishing competence. At the start of its 100th season, the St. Louis Philharmonic demonstrated again what its admirers have long claimed-that it is the finest non-professional orchestra in the world...
...transit system, plays the second flute while his wife is a timpanist and his 23-year-old son a French horn player. The rehearsal schedule is heavy: six 2½-hour rehearsals for each of four concerts. What gives the Philharmonic its special quality? "They are amateurs," said Guest Conductor Van Remoortel last week, "in the old sense of the word-'people in love with something.' This group happens to be in love with music...