GRAVITATION.* — Every particle of matter in the universe attracts every other particle of matter with a force directly proportional to its mass, and decreasing as the square of the distance Fig. The Planetary and Stellar Worlds: A Popular Exposition of the Great ... - الصفحة 125 بواسطة Ormsby MacKnight Mitchel - 1848 - عدد الصفحات: 320 عرض كامل -
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