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Dates: during 1930-1939
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Twenty-two years ago Professor Pickering first became aware of an immense heavenly body beyond the known superior planets. He knew that the object of his search was huge, thought he would call the planet Pluto when he was sure of its existence. When Lowell's Planet X came along and got that name, the putative Pickering planet was then called Planet...
...will be put on sale tomorrow at the coop. The four essays, which were chosen from the best honor these, and from these that were submitted in the Bowdoin Prize competition, will be published in separate volumes, and are by J. D. Hyman '31, H. T. Levin '33, F. X. Moloney '31, and W. C. Roper...
Many say that Professor Jesse W. M. DuMond of California Institute of Technology is Science's best Mechanic. Fortnight ago international physicists at Rome inspected his multiple crystal spectrometer. Last week at Pasadena the public viewed his stereofluoroscope X-ray device...
...great difficulty in studying X-ray pictures is that, like ordinary photographs, they show no depth. Stereoscopes do indicate depth, by use of two photographs taken from slightly different angles (TIME, Oct. 19). Professor DuMond gets similar effects by using two close-set X-ray tubes and viewing through an appropriate attachment the slightly different shadows each reveals...
Professor DuMond's multiple crystal spectrometer lets physicists look at electrons. The machine consists of 50 spectroscopes arranged in an arc. A crystal is placed in the range of a device and then bombarded by X-rays. The X-rays batter electrons free of their atoms. The spectrometer reveals, not exactly the electrons themselves, but splashes of energy which represent the electrons...