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A comment on Ask HN: What Are You Working On? (January 2026).

Re:Ask HN: What Are You Working On? (January 2026) by anfractuosity on Sunday January 11, 2026 @01:45PM (#46578448)
Trying to visualise magnetic fields of a floppy disk.

So far I can see magnetic fields on a magstripe https://www.youtube.com/watch?v=c8nM4Z-hkTw with two polarisers (one of which I rotate in the video, which is contained in a 3D printed holder with gears I made).

I'm awaiting some different polariser film, to see if I can get it to work with a floppy disk.

[ Parent | on HN ]
Re:Ask HN: What Are You Working On? (January 2026) by adityaathalye on Sunday January 11, 2026 @02:17PM (#46578857)
Trippy! Please do a large-format visual art installation of the results of this... like, project it on a wall or on some other public surface that is... unexpected.
[ Parent | on HN ]