Word: layering
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...visiting Australia carried his dust filters on 16 cruises to 70,000 ft. over the Antarctic Ocean, far from land. The filters came back containing dust that could hardly have come from the ground. Some U-2 nights carried a special camera that photographed what looked like a thin layer of dust far up in the upper atmosphere...
...Hamburg, spotted a Soviet MIG-17 fighter with six rockets under each wing soaring 200 ft. off the airliner's right wingtip. "He just sat there, where all the passengers could see him," said Pan Am Captain Tony Duff. When Duff's plane entered a convenient layer of stratus cloud, the MIG peeled off and vanished, but the maneuver was an obvious hint of what could come...
...earth's planetary neighbors, astronomers have regularly passed up that distant giant Jupiter (1,312 times larger than earth). Jupiter drifts in a suffocating yellow cloud of ammonia and methane, 483 million miles from the sun, and scientists have reached the conclusion that the temperature of its cloud layer is a deathly cold -207° F. Its shroud is believed by some to conceal an ice layer 17,000 miles thick. But last week, writing in Radiation Research Magazine, a University of California astronomer raised the possibility that Jupiter's cloud cover may conceal-and even nourish-rude...
...plentiful in the byproducts of plutonium manufacture, and the AEC's Oak Ridge National Laboratory, taking careful precautions, decided to use it. It was converted into strontium titanate, which is chemically inert and virtually insoluble, then formed into eleven pellets and welded into a three-layer jacket. All this had to be done by remote control from behind thick radiation shields-or the operators would not have lived to do more work...
...they had been exposed to the iron and manganese oxides that slowly deposit from sea water. Other surfaces were fresh and light green. Dr. John B. Hersey, chief scientist of the cruise, believes that the chunks with fresh faces were broken by the dredge out of the mysterious third layer. If so, they may show what the crust of the earth was like billions of years ago, before the infant ocean rained sediment...