Word: schjeldahl
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Dates: during 1960-1960
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...balloons. Microscopic meteorites punctured Echo's skin, allowing the gas inside to seep out. Sunlight exerted a slight but persistent pressure. Gradually Echo lost its regular shape; flat places and wrinkles appeared on its shiny surface. "She's prune-faced already," says Richard Slater of G. T. Schjeldahl, Northfield, Minn., the company that made the balloon. When Echo turns deliberately about once in eight to ten minutes, flat places sometimes act as mirrors, making the sun's reflection momentarily brighter. Wrinkled places dim the reflection. The radio waves that are bounced off Echo show the same variations...
Guns Galore. A shower of new products and processes is augmenting man's age-old efforts to get in out of the rain. Minnesota's Schjeldahl Co.'s polyester plastic balloon structures can be built in half a day, need only an ordinary building fan to keep them inflated, will last five to ten years. Quonset-shaped, the Schjel-dome will work in the arctic or the tropics, can be used for garages and greenhouses, swimming pool covers and grain warehouses, is repaired with a hot iron...
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