Word: liquidity
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Dates: during 1960-1969
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...mountain building-but with a difference. The earth was cool and solid when it was formed, says Lyttleton; then radioactivity gradually heated its rocky material. A few billion years ago, the earth's central core got hot enough to change from a plastic solid to a true liquid. Under the enormous pressure that exists near the center of the earth, liquid rock is more compressible than solid rock. So when the core liquefied, it was squeezed into a smaller amount of space, allowing the layers about it to settle down...
Died. Aleksandr Vasilievich Topchiev, 55, chemist credited with a major role in developing the liquid rocket fuels that enabled the Soviets to build their huge space vehicles; of a heart attack; in Moscow. Topchiev was a frequent visitor to the Pugwash conferences staged in Nova Scotia by Russophile Industrialist Cyrus Eaton, where the chemist enjoyed preaching that science is above national politics. But he had a pragmatic side: in 1958, a fellow Russian remarked that what he feared most was an accidental and irresponsible attack on Russia by the U.S., and Topchiev grinned back: "What I fear most is responsible...
...Strategic Air Command last week took control of a new squadron of twelve Atlas missiles at Plattsburgh Air Force Base in upstate New York-bringing to 200 the total of U.S. combat-ready intercontinental ballistic missiles. The nuclear-tipped arsenal includes 126 liquid-fueled Atlases; 54 Titans, a bigger and heavier liquid-fueled missile; and 20 quick-firing, solid-fueled Minutemen. Each has a range of 6,000 miles or more, and each is zeroed in on an assigned target in the Soviet Union. The present total is at least twice the estimated strength of the Russian missile force...
...advantage of Minuteman is that its three engines use solid fuel. Thus, while the already deployed, liquid-fueled Atlas and Titan* take 15 minutes to fire, Minuteman can blast out of its hole within 32 seconds of the trigger command -the first truly pushbutton transoceanic weapon. The use of a solid propellant also eliminates the complex plumbing and finicky maintenance problems of the earlier missiles. Minutemen can be turned out faster than their silos can be emplaced. Once deployed, they require no major maintenance for three years. At a systems cost of $3,400,000 per missile, Minuteman costs...
Corot's friend Charles Daubigny bought a boat and used it as a floating studio. He painted scenes along the coasts of France and Holland with brush strokes that became increasingly liquid, in keeping with his subjects. Critics accused him of hastening too much over solid detail, surrendering too much to vague "impressions." Writes Professor Herbert: "It was in this dispute, which revolved around his diminishing the difference between sketch and finished painting, that the battle for impressionism was first engaged...