Contemporary Review (44) (English, Italian, Paperback)

Questo libro di storia potrebbe contenere numerosi refusi e parti di testo mancanti. Solitamente gli acquirenti hanno la possibilita di scaricare gratuitamente una copia scansionata del libro originale (senza refusi) direttamente dall'editore. Il libro e Non illustrato. 1883 edition. Estratto: ...before the recent earthquake, indicating the approach of disturbance in a way plain enough to have been the means, but for human selfishness, of saving thousands of lives. The Total Solar Eclipse Of May Cth. The results of the observation of this total eclipse, though not very striking, possess yet considerable importance. Passing over features which were either akin to those already observed, or may be regarded as in a sense casual, it is worthy of notice that the corona, which was tolerably bright, showed evidence, wanting during the eclipse of 1878, of the pressure of hydrogen. The bright lines of hydrogen have hitherto only been obtained from the corona at times when the sun ha shown a considerable number of spots. If this is not an accidental relation, its significance is great. For it is noteworthy that prominences of the eruptive kind are similarly related to spots. Not only are they never seen when the sun's surface is free from spots, but they are even then only to be seen opposite those parts of the solar disc which correspond to the spot zones. Now in these eruptive prominences, commonly regarded as due to eruptions of glowing hydrogen, we really seem to have evidence of' the expulsion of matter very different from hydrogen--rather matter which is either solid, or liquid, or, if gaseous, highly compressed and dense. For the matter shot out in these eruptions travels to enormous distances and with marvellous velocity. It is far more probable that the glowing hydrogen seen in these eruptions indicates the tracks of the expelled matter, and is not itself expelled, or if ejected at all, that it bears somewhat the same relation to the heavier matter expelled...