人間ひとりに空気の重さがどれくらいかかっているか知ってますか? 16トンですよ。それだけの圧力が常にかかっているわけですから、人間は空気の深海に住んでいるのと同じです。気圧が1ヘクトパスカル上下するだけで、人体はプレッシャーの変動をすごく受けるわけです。
August 30, 2008
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