Star gazers in Germany have sat comfortably back in their planetaria (TIME, Feb. 13) and watched the earth move round the sun, the solar system gyrate. A lecturer has stood beside a colossal intricate mechanism, a steel cylindrical apparatus about 25 feet long with a great steel sphere at each end, bulbous with electric eyes. These were the stars and planets; each with its own motor to send it through any. desired orbit. Upon the huge domed ceiling, 75 feet across, the professor could project the sky as it looked to three shepherds of Judea on a certain cold night in...
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