"牛頓擺" 修訂間的差異
(→原理) |
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===原理=== | ===原理=== | ||
<img src='https://upload.wikimedia.org/wikipedia/commons/e/e8/Newtons_cradle_animation_book.gif' height='200'> | <img src='https://upload.wikimedia.org/wikipedia/commons/e/e8/Newtons_cradle_animation_book.gif' height='200'> | ||
| + | ===能量守恆=== | ||
===活動=== | ===活動=== | ||
