Word: toed
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Dates: during 1940-1949
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When silt sinks slowly to the bottom of an ocean or lake, the magnetic particles in it line up with the earth's magnetic field like tiny compass needles. When the silt hardens into rock, the magnetic particles are "frozen" so that they cannot move. The Carnegie scientists found...
Reassured by this stability, Dr. John Graham and a team of Carnegie geologists went to work. A series of rock samples 10 million to 100 million years old which they took from flat-lying strata in the western U.S. proved to have a magnetism pointing in about the same direction...
But when the geologists examined rocks from Maryland more than 350 million years old, they found that their magnetism pointed in an entirely different direction. The south-seeking ends of the magnetic particles were pointing downward as the needles of "dip circle" compasses do in the southern hemisphere. The ancient...
The Carnegie scientists were cautious about jumping to conclusions. But at least two conclusions are possible: 1) that the earth's magnetic field has shifted radically since 200 million years ago, or 2) that the North American continent, including Maryland, was once near the south pole and has since...
Academician Trofim D. Lysenko, ideological shepherd of Soviet geneticists, announced last week in Izvestia that Soviet agrobiologists can turn wheat into rye. All they have to do is plant wheat in places where the climate is tough for it. In a spasm of self-preservation, wrote Lysenko solemnly, the wheat...