https://imapenguin.com/tags/sound/ Recent content in Sound on Imapenguin Hugo en-us Thu, 05 Nov 2026 10:00:00 -0500 https://imapenguin.com/2026/11/chladni-plates-on-a-commodore-64/ Thu, 05 Nov 2026 10:00:00 -0500 https://imapenguin.com/2026/11/chladni-plates-on-a-commodore-64/ Bow a metal plate covered in sand and the sand runs to the lines that don’t move. Change the note and it draws a new picture. Here’s why that happens, and a Commodore 64 version where the SID sings and the sand dances.