Re:Concrete blocks that once protected Britain
by protomyth on Monday January 07, 2019 @12:25AM
(#18842991)
A video on the sound mirrors https://youtu.be/04F5osXK4vw
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Re:Concrete blocks that once protected Britain
by Paraesthetic on Monday January 07, 2019 @02:54AM
(#18843540)
Legend, I was about to post a link to the Tom Scott video as well. Its a fantastic video and explains it very well.