Word: spectrographed
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...four years Astronomer Aden B. Meinel of the University of Chicago's Yerkes Observatory had worked on the problem. He devised a powerful spectrograph, built around a special Schmidt camera, which gathers light from a large area of the sky. Last month, when the sun was nicely spotted in the right places, he got his apparatus ready and pointed it in the direction from which he expected the hydrogen particles to come. Nicely on schedule, the night sky lit up with an "extreme aurora...
...Light coming from a moving object has a slightly changed wave length and therefore makes a displaced mark on a spectrograph's plate...
...other labs, Professor Kenneth T. Bainbridge is studying the mass spectrograph, and Professor Edward M. Purcell is working on nuclear-magnetic moments, which isn't half as simple as it sounds...
Working with short, amiable spectrograph expert Milton Humason, Hubble studied the light of the distant nebulae. In every case he found a "red shift."* The farther off a nebula was, the faster it appeared to be rushing away, and the enormous speeds (thousands of miles per second) were new, strange and startling to astronomers...
...years. Last month, McDonald Observatory at Fort Davis, Tex., had a wonderfully "steady" night. Struve trained the 82-inch reflecting telescope on the Companion of Antares. The image of the Companion trembled hardly at all. In a few rare minutes, he was able to coax it separately into a spectrograph and photograph its spectrum under almost ideal conditions without interference from the brilliant red light of nearby Antares...