Word: angstrom
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Dates: during 1950-1959
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...angstrom equals one one-hundred-millionth of a centimeter...
...measuring wave lengths, one angstrom - 100-millionth of a centimeter. Visible light ranges between 3,900 A. (violet...
...into the green band of the spectrum. If they were bright enough to be seen in color, human eyes would actually see them as green instead of blue. This means that the motion of the nebula has lengthened the wave length of its blue light by more than 800 angstroms (.000003 in.). "It's a tremendous shift," says Dr. Hubble. "In our own stellar system, the average shift is only a fraction of one angstrom...