Word: echoeing
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Bravo for your excellent coverage of the latest attempt by the Kennedy family to try and outbid the State Department. I am sure that many readers of TIME will echo Senator Hugh Scott's words concerning this matter of exposing the immature, hot-tempered, . glory-seeking actions of the junior Senator from the Commonwealth of Massachusetts...
Millions of people have watched Echo, the U.S. balloon satellite, as it crosses the sky. And most of them have noticed that it twinkles like a star and also brightens and dims slowly in a way that no star does. Why does it perform in this odd fashion? Last week the explanation came from Dr. Leonard Jaffe of the National Aeronautics and Space Administration. Echo's quick twinkling, said Jaffe, is caused by the same atmospheric irregularities that make stars wink. Some of its slower dimming may be due to thin patches of clouds, invisible at night-but most...
...When Echo first took to space on Aug. 12, it was as round and polished as a giant ball bearing, its aluminized Mylar film kept tightly inflated by 20 Ibs. of vaporized anthraquinone, a normally solid organic chemical. When its 100-ft. sphere moved on its orbit 1,000 miles away from the surface of the earth, it covered about one-tenth the angle of the planet Venus at 40 million miles, but it did not show as a disk even in a powerful telescope. The sun reflecting on its spherical surface showed as a mathematical point, as stars...
...space is a tough neighborhood for frail balloons. Microscopic meteorites punctured Echo's skin, allowing the gas inside to seep out. Sunlight exerted a slight but persistent pressure. Gradually Echo lost its regular shape; flat places and wrinkles appeared on its shiny surface. "She's prune-faced already," says Richard Slater of G. T. Schjeldahl, Northfield, Minn., the company that made the balloon. When Echo turns deliberately about once in eight to ten minutes, flat places sometimes act as mirrors, making the sun's reflection momentarily brighter. Wrinkled places dim the reflection. The radio waves that...
...weeks after launching, Echo stayed entirely outside the shadow of the Earth, but on Aug. 24 it dipped into darkness for two minutes while passing over the U.S. West Coast. Each day its stay in the shadow will increase, until in late December the balloon satellite will be in darkness for 35 minutes of its 118-minute orbit. When it goes into the shadow, it shrinks a bit, but Dr. Jaffe does not know how much...