Word: travelled
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Dates: during 1960-1969
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According to Cooper's equations, by "dropping" in airless, frictionless, straight-line tunnels, passenger vehicles powered only by the pull of gravity could theoretically travel between Washington and Moscow, which are 4,850 surface miles apart, in the same time it would take them to travel from Washington to Boston, only 400 miles away. "One can envisage a transportation system without timetables," says Cooper, tongue in cheek, "with the world's cities linked by tunnels, the departure time universally on the hour, and the arrival time 42.2 minutes later...
Gravity-Powered Travel. To be sure, some formidable obstacles would have to be overcome before his scheme could become reality. At its midpoint, a Washington-Boston tunnel would be five miles below the surface of the eartha technically difficult and prohibitively costly bit of construction. In addition., the subterranean temperature at a five-mile depth might be as high as 265° F., and a passenger vehicle would need an immense cooling system. Finally, because a perfect vacuum could not be created within the tunnel, and because the vehicle would probably have to ride on some sort of rail, friction...
Undaunted by such practicalities, Cooper has also set up and solved by computer a set of differential equations for curved tunnels that would provide minimum gravity-powered travel time between any two cities on earth. These tunnels would swoop into the ground at steeper angles and penetrate to even greater depths. Though travel times would vary, all would be less than the 42.2 minutes required for straight-line trips...
Cooper has let his imagination soar even farther. Using different radii and gravitational forces in his formulas, he has laid out the mathematical groundwork for extraterrestrial travel networks. According to his calculations, straight-line tunnel travel between any two surface locations would be 53 minutes on the moon, 49 on Mars...
Charles Odegaard, 55, Washington; One of the fastest climbers among the newer presidents, he is so active that his regents a few years ago ordered him to take a vacation. Recently, the Carnegie Corporation of New York gave him a three-month travel grant just to refresh himself-this week he is on the Mediterranean. Once a history professor, he moved to the Seattle post in 1958 from the deanship of Michigan's College of Literature, Science and the Arts...