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落ちない│エデュサイ
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ペットボトルに触れただけのボールが落ちない！！

水を入れたペットボトルやビンの容器に、球を置いて逆さにしても落ちない！！その原理を学校で習う知識を生かして解説してみました！！ YouTubeで見るわかりやすい、面白いと思っていただけたら、ぜひチャンネル登録をお願いします！！チャンネル登録 […]