A text-book of general astronomy : for colleges and scientific schools (1888)
Young, Charles A. (Charles Augustus), 1834-1908 · Boston ; London : Ginn & Company · leaf 428
, which arebrightest and most usual, do show a hydrocarbon spectrum throughout theirentire length, and so far confirm his view. The reason for this conclusion of Bredichin is that he supposes therepulsive force to be a surface action, the same for equal surfaces of any kindof matter; the effective… … Fig. 205. — Bredichins Three Types of Cometary Tails. 416 COMETS. to their molecular weights. Now the molecular weights of hydrogen, ofhydrocarbon gases, and of the vapor of iron, bear to each other just aboutthe required proportion. 733. Nature of the Repulsive Force. — As to this we have so farno…
Astronomy
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