Word: ions
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...ductless hood for the stove, just introduced by Puritron, uses electronics to cope with the smoke and grease that all too rapidly foul the usual hood's charcoal filter. A tiny ion tube of gold alloy releases a stream of negative ions when the hood is turned on, promptly attacking the positive ions in the air, around which the molecules of smoke and cooking odor gather. This precipitates the molecules on an easily washed aluminum filter-releasing fresh, clean air again. In three sizes and colors...
...desirable. Dej wants an amorphous Communist "commonwealth" in which Peking would provide steady ideological opposition to Moscow, thus permitting individual nations like Rumania to maneuver between the two poles. To show his continued independence, Dej himself stayed away from last week's Moscow meeting, instead sent Premier Ion Gheorghe Maurer, his glad-handing traveling...
...having one thing in common: a four-ring cluster of carbon atoms, known as "the steroid nucleus." Other attached atoms give each steroid its distinctive character (see diagram). By growing rat-liver cells in the test tube, Dr. Bloch learned that they make cholesterol from the much simpler acetate ion (acetic acid minus a hydrogen ion). "My work since then," he says, "has been on the processes that the cell uses to manufacture the cholesterol molecule. This is a fantastically complex sequence of approximately 36 biochemical reactions." Bloch adds with a grin: "It was a great temptation to call...
Under development by Electro-Optical Systems Inc. of Pasadena, Calif., for the past four years, the ion rocket is likely to prove to be the Mighty Mouse of the space age. On earth it develops no more thrust than several milli-pounds (engineers call it the "milli-mouse burp"), barely enough to lift a one-carat diamond an inch off a desk. But in frictionless, gravity-free space, such burps can propel the biggest payloads. And the ion rocket's assignment is just that: to take over the task of propelling huge space cargoes to the planets and back...
...ion engine tested in a 30-minute, 3,200-mile flight over the Pacific got its thrust by passing vaporized cesium metal through a hot tungsten filter. This action strips electrons from the cesium, speeds the positively charged ions out the rear of the engine. The great advantage of this process is that it requires remarkably little fuel-only one-tenth of that for a conventional chemical rocket. Even the smallest ion engine could keep a satellite on its right course for more than ten years by giving it gradual nudges. On a 300-day trip to Mars, a full...