GIỚI THIỆU VỀ TẬP NÀY
Noise canceling headphones flip a sound wave upside down so the 2 waves cancel out. The same move put out a burning gas well, ended the panic of 1825, saved Wag Dodge at Mann Gulch and turned one computer worm against another.
Featuring: Wag Dodge, Norman Maclean, Jeremiah Harman
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Chapters:
(00:00) How noise canceling headphones work
(00:29) Wag Dodge at Mann Gulch
(01:04) The burning gas well in Uzbekistan
(01:25) The panic of 1825
(01:57) The Welchia worm
(02:33) The same thing pointed the other way
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BẢN CHÉP ÂM THANH 🔗
Tiny microphones on the headphones pick up the noise around you, like a plane engine. A small computer inside flips that sound wave upside down and plays it through the speakers.
Where the engine pushes the air up, the flipped wave pulls it down by the same amount. The 2 waves cancel out and the engine goes quiet.
That made me wonder where else something gets inverted to ca…
