Page 287 - 89 history of astronomy_opt
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the latter asserted the existence of a resist-
ing medium in space.
Again, in 1774, the Academy submitted
the same subject, a third time, for the prize;
and again Lagrange failed to detect a cause
in gravitation.
Laplace [2] now took the matter in hand.
He tried the effect of a non-instantaneous
action of gravity, to no purpose. But in
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