Lectures on some recent advances in physical science : with a special lecture on force (1876)
Tait, Peter Guthrie, 1831-1901 · London : MacMillan · leaf 278
s of years. But such small comets as have been observed havegiven spectra which are extremely well worth noticing.These observations seem to show, first of all, that the tailof a comet gives a spectrum like that of the moon orother body illuminated by sunlight; in other words, thatthe tail of the… … tinuous, nor is it visibly intersected by dark lines: itconsists in general of a small number of bright linesstanding markedly out in relief from a feeble continuousspectrum. There (in the upper figure) is one of these—the spectrum of what is called Winneckes comet, fromthe discoverer. It consists…
Force and energy · Heat · Matter -- Constitution · Spectrum analysis
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