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科学の祭典2009:逆さ振り子の不思議

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Uploaded by on Jul 30, 2009

おもりのついた糸を動かしてみると、おもりはうしろに残ります。しかし、水の中に浮いた逆さ振り子は動かした向きに動きます。どうしてでしょうか。ちょっと不思議な逆さ振­り子をつくって考えてみましょう。

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  • これは慣性力がかかった場合、水の中で振り子が慣性力と反対方向­に「浮き上がる」現象でしょうね。良い材料です。

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