IN the spring of 1897 the scientific world became indebted to Dr. Zeeman for the observation that when a source of light is placed in a strong magnetic field the spectral lines of the light emitted by ...
To see a “world of life almost as unknown as that of Mars,” two explorers climbed inside the bathysphere and descended into the sea’s cold depths in 1931. After a dive of a quarter-mile beneath the ...
A RECENT article in the Times (Dec. 24) speaks of the application of the spectroscope to the observations of transits; it is so much to the point that we reproduce a portion of it here:— ...
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