"Gravitative" Quotes from Famous Books
 ... the chief member of our system. It controls the motions of the planets by its immense gravitative power. Besides this it is the most important body in the entire universe, so far as we are concerned; for it pours out continually that flood of light and heat, without which life, as we know it, would quickly become extinct upon ...
— Astronomy of To-day - A Popular Introduction in Non-Technical Language • Cecil G. Dolmage |
