Results 1-3 of 86
And at this time , an English scientist noted a ities . few dark lines in the solar
spectrum , which was studied in Line - of ... prominent of which ed in determining
accurate radial velocities of many stars ments are still called “ Fraunhofer lines .
Sometimes several lines are seen that correspond to but such differences are
readily resolvable on mediumdifferent radial velocities , implying that two or more
and high - dispersion spectrograms . Much effort has also clouds are moving with
ing mechanism must operate to slow them to velocities as be obtained from the
relative intensities of suitable lines modest as that of the Sun. of an atom , of an
atom and its ion , or even of lines of Velocities in the line of sight have been ...
What people are saying - Write a review
LibraryThing ReviewUser Review - keylawk - LibraryThing
This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review