Word: tarring
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
Ever since Dr. Ernest L. Wynder championed the view that heavy cigarette smoking is a major cause of lung cancer, he has been challenged to produce the substances in tobacco smoke (or tar) that do the damage. Last week the American Association for Cancer Research, meeting in Atlantic City, took Wynder's word for it that he has now run the number of tobacco-tar fractions capable of causing cancer up to eight, with the end not yet in sight...
Soviet propaganda has tried with some success over the years to tar the U.S. as a villain for carrying out nuclear tests and to whitewash the Soviet Union as a do-gooder for demanding a nuclear test ban. In a speech last week, Atomic Energy Commissioner Willard F. Libby demolished the Soviet we're-on-the-side-of-the-angels pose. He pointed out that in October-six months after the Soviets had won the plaudits of the world's neutralists for piously suspending nuclear tests, and just after the U.S. announced its decision to suspend tests...
...good, solid nuclear explosion separate imprisoned oil from the tight clutch of tar sand? If it can, the world's oil reserves may soon be doubled. The geological proving ground is the 30,000 sq. mi. of tar sands underlying northern Alberta and Saskatchewan in the vicinity of Lake Athabaska. The company that thinks it can turn the trick is California's Richfield Oil Corp., which last week formally asked permission of the Canadian government to set off a nuclear charge just under the Athabaska sands...
Richfield's big atomic bet is based on a chemical peculiarity: the molecular structure of Athabaska oil is such that, once thinned by heat, it flows indefinitely, whereas many heavy crudes thicken again in cooling. The spot picked by Richfield for its experiment has rich tar sand down to a depth of 1,000 ft. Then the underlying rock begins. If the A-bomb experiment works, the first small-scale (two-kiloton) detonation will be set off in the rock strata 1,200 ft. below the ground. Engineers expect that the bomb will create a huge cavity, and heat...
...field, first heard of the nuclear scheme, he scoffed at it as "something of a Jules Verne story." Now he sees it as "a new type of mining." Indications last week were that the project is progressing. At the U.S. Atomic Energy Commission's Oak Ridge installation, tar sands were being tested to see whether the radioactivity will be held safely underground. The U.S. will probably agree to provide A-bombs for Canada to push the experiment...