To the moon and back in ninety days : a thrilling narrative of blended science and adventure (1922)
Brown, John Young, 1858-1921, Lunar Publishing Company. pbl · Providence, Kentucky : Lunar Publishing Company · leaf 106
the forces exerted byA and B on C are equal. As a result, these bodies exert-ing their forces upon the intervening mass in oppositedirections counteract them and thereby fix the point ofequilibrium at the middle of the straight line that mea-sures the distance between their centers* As a further…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
