The clear pictures televised from Ranger spacecraft have brought man closer and closer to the surface of the moon. But for an advanced step in lunar explorationsa first comparison between the moon's crust and its invisible interiorscientists have now abandoned telescope and camera and turned to the computer.
Resetting the Clock. Columbia University Astronomer Wallace J. Eckert and Graduate Student H. F. Smith Jr. of IBM's Watson Laboratory at Columbia began by analyzing the moon's orbit with IBM's fast-figuring computers. The moon's position has been observed with precision for 200 years, so there was more than enough...
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