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3 results for “Astrophysics”
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Britannica 11th
Encyclopaedia Britannica · 11th edition
Astrophysics
Britannica 11thASTROPHYSICS, the branch of astronomical science which treats of the physical constitution of the heavenly bodies. So long as these bodies could be known to men only as points or disks of light in the sky, no such science was possible. Even later, when the tel ...
Apophysis
Britannica 11thAPOPHYSIS (Gr. dir64>urts, offshoot), a bony protuberance, in human physiology; also a botanical term for the swelling of the spore-case in certain mosses.
Astronomy
Britannica 11th... he motions, mutual relations and dimensions of the heavenly bodies; and that of Astrophysics (<?.».), which treats of their physical constitution. While it is true that the instruments and methods of research in these two branches are quite different in their ...