Word: liquidity
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Dates: during 1960-1969
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...achieve underground paving, the M.S.U. researchers designed a tractor-pulled Rube Goldberg device that lifts a 2-ft.-deep strip of earth from the field, sprays warm liquid asphalt underneath it, and then allows the soil to settle back in place. The asphalt solidifies immediately into a 34-in.-wide, ⅛-in.-thick ribbon. Adjacent ribbons are overlapped to ensure that the entire layer will be watertight. To reduce costs, Engineer Hansen is now working on a machine that will lay down lO-ft.-wide strips...
...undergoing a sensitive and still experimental examination designed to detect changes in blood flow and temperature that may be produced by vas cular disorders. Capable of indicating temperature variations as small as .047° F, the liquid crystals he has been painted with were originally developed for testing mechanical stresses in deli cate instruments. But their quickly identifiable color changes may prove far more valuable for humans...
Interest in the frozen way to immortality has led to the establishment of firms in Phoenix and New York that design and build equipment to contain bodies preserved by liquid nitrogen. These capsules cost more than $4,000 and require another $150 a year in maintenance. One woman who agreed to have her remains frozen explained: "With bad luck, I'll stay simply dead. With good luck, I may live again. It's worth trying...
Aware that Surveyor was dying in space, scientists decided to salvage some engineering telemetry data from the mission. They turned on the craft's landing radar system to check the effect of failing batteries on its operation, then they opened the vents on the liquid helium tanks to test the system that pressurizes Surveyor's rocket fuel. In a last effort, they fired the spacecraft's big retrorocket while it was still 70,000 miles from the moon. The spin rate slowed, but not nearly enough. Then, while the retrorocket was firing, all contact was lost with...
...Admission. To control the crowds and compensate for his inconvenience, Morse erected an 8-ft.-high chain-link fence around the tree, hired two gatekeepers and began charging visitors 50? admission to touch the magic acacia and carry its liquid away in pop bottles. His curiosity piqued by the spreading excitement over the acacia, Tree Surgeon Grover Smith arrived from nearby Harlingen, and somehow climbed the tree without Morse's knowledge. His deflating conclusion, which was printed in the local press: insects had bored "into a little old bitty knothole and the tree just started bleeding...