Science: Moon Map?

Some day, the mountains of the moon may be accurately charted by radar. So says Britain's famed physicist, Sir Edward Appleton, the man who proved that the earth is swaddled in concentric, electrically charged layers of atmosphere. Sir Edward's theory: radio echoes, bounced off the moon's surface by an extremely short-waved transmitter, could be used to picture the moon's terrain.

The U.S. Radiation Laboratory was skeptical. The theory was fine, said the Lab, but the narrow-beamed, super-powerful set needed to do the job has yet to be built. Until it is, the best lunar data will probably continue to be gathered through...

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