Walter William Bryant eBooks
eBooks di Walter William Bryant
Kepler. E-book. Formato PDF
Walter William Bryant
edizioni Forgotten Books collana , 2017
In comparison with the question of the motion of the earth, no other astronomical detail of the time seems to be of much consequence. Comets, such as from time to time appeared, bright enough for naked eye observation, were still regarded as atmospheric phenomena, and their principal interest, as well as that of eclipses...