抓到「把柄」瞬間崩潰的魯珀特之淚

by Twelve
2019.08.24 04:02PM
11283
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魯珀特之淚 (Rupert's Drop)是玻璃的物理特性,因為前後壓力不平衡而讓玻璃本體產生支離破碎的現象。魯珀特之淚製作方式是將熔化玻璃滴入冰水中硬化成蝌蚪狀,因為表面和內部冷卻的速度不同,固化後內外應力不同,雖然維持平衡的狀態,但只要脆弱的尾部受到破壞,會連同前端一起爆碎成粉末。若以高速攝影拍攝其粉碎的速度可達每秒1450~1900米。

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前端十分堅硬以尖銳物敲擊也沒問題

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但是後端一掰斷整條玻璃就「麩去」…

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影片中的實驗與分析可以更了解其中的奧妙。

 

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