Gravity - Wikipedia

文章推薦指數: 80 %
投票人數:10人

Gravity (from Latin gravitas 'weight'[1]), or gravitation, is a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light[2]—are brought toward (or gravitate toward) one another. On Earth, gravity gives weight to physical ob



請為這篇文章評分?