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ARCTIC ODYSSEY: THE DAVID HUMPHREYS POLAR EXPEDITION (NBC, 7:30-8:30 p.m.). A close-up study of an Arctic expedition that changed the map of the world. The odyssey follows the project from its planning stage through its 109 days on the polar...
...map above is a three-dimensional picture in two dimensions showing the relative population density of the U.S North Atlantic coast. That peak in the middle is New York City, with Washington on the left and Boston on the right. Also shown are Cape Cod, Chesapeake Bay, the mouth of the Delaware River, and the Long Island Sound (population zero...
Navigational data that the astronauts gathered will help NASA scientists plot Apollo's orbit more precisely than they could by tracking it from earth. Once the rises and dips in Apollo's orbital path have been identified, the scientists will be able to map their cause: variations in the lunar gravitational field believed to be caused by concentrations of massive material beneath some craters and seas. With better knowledge of the gravitational field, NASA will be able to plan more accurately the paths of future landing missions, on which errors of only a few feet could be dangerous...
...Israeli jets flashed across the cease-fire lines three times to bomb the area around the Jordanian town of Irbid and hammer at the artillery positions of the 421st Iraqi battalion. Deep inside Jordan, Israeli commandos blew up two vital bridges connecting Amman and the port of Aqaba (see map...
Computers, fed the needed facts, have drawn construction plans and highway schemes, but "Harvard is the only place in the country where computer graphics are being used to map air pollution," an undergraduate working on the project said yesterday...