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Bensemus t1_itniup1 wrote on October 24, 2022 at 11:11 PM

Reply to comment by Imaginary-Location-8 in NASA poised to break sound barrier without the sonic boom by Ssider69

The crack is the tip breaking the sound barrier. A towel is just a really shitty whip.

https://www.scientificamerican.com/article/true-cause-of-whips-crack/#:~:text=%22The%20crack%20of%20a%20whip,that%20generates%20the%20sonic%20boom.%22