One of the replies briefly mentions coffee cup vibrations.
There's a fun Numberphile episode just about this topic. https://www.youtube.com/watch?v=MfzNJE4CK_s
By far, it is my favorite trick for impressing dining company.
There's a fun Numberphile episode just about this topic. https://www.youtube.com/watch?v=MfzNJE4CK_s
By far, it is my favorite trick for impressing dining company.
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