l 牛顿在林肯郡家乡的花园看到苹果从树上落下，他受到启发，因而发现了地心引力。

Newton’s ideas were inspired by seeing an apple fall from a tree in the garden of his home in Lincolnshire.

youdao

牛顿也为地心引力完成了一种数学公式。

Newton also worked out a mathematical expression for gravity.

youdao

伊萨克·牛顿对苹果下落与地心引力的顿悟。

Isaac Newton's Epiphany about gravity and a falling apple.

youdao

伊萨克·牛顿对苹果下落与地心引力的顿悟。

Isaac Newton's Epiphany about gravity and a falling apple.

youdao