"Ernst Florens Friedrich Chladni was a German physicist and musician. His most important work, for which he is sometimes labeled the father of acoustics, included research on vibrating plates and the ..." Wikipedia These videos have very annoying sounds! Please turn down the volume. On this site the author shows some of the patterns he found. Physics demonstrations: Chladni patterns | Skulls in the Stars Watch these two videos for an explanation.
The Mad Doctor
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The 1933 short *The Mad Doctor* marked the first time Mickey Mouse starred
in a horror story. Some theaters refused to show it because it was too
scary...
2 hours ago