Do you know what makes this pattern? The answer is magnets! #magnet #magnetic #science

[GiGaSzS]

Vau, please try to optically view individual bits on a floppy disk, that sounds really awesome. Maybe there are more sensitive strips, of maybe you can use extremely fine iron powder over floppy disk cardtidge.

[startedtech]

Techmoan showed off a vintage gadget from 3M in a video a while back which was a magnetic viewer that let you see the tracks on cassette tape. IIRC, regular magnetic viewing film wasnt sensitive enough to see the tracks on a cassette.

[psychoskwurl]

Its actually printed in large strips as a fluid and cut to shape. You can see them made on how its made.

[chrono]

I remember i was super into magnets when i was a child, and i discovered this because i rubbed two fridge magnets together and they skipped like a ratchet, years later understood the physics underneath it, but it still feels like magic

[neiltessier]

I work at a rock Auto Warehouse. I have so many of those damn magnets I don't know what to do with them. They're so cheaply made they barely even stick to a refrigerator.

[brucesv]

I’ve been waiting for somebody to put a few privacy screen protectors under the microscope to see what they really look like

[andyk]

That last magnet made the windshield wiper button image!

[marchantiapolymorpha]

I have something that is sensitive enough to read the bits on that disc. It's called a 3M magnetic tape viewer. Patent number 3013206. Good luck finding one. I've only found one and I've been looking for a while for others, but they were very expensive back when they were sold and there's no contemporary use for them currently so they are not manufactured. But they are a lot of fun to play with and you can actually see the slight magnetic fields of your own fingers. It's a metal disk about the size of a silver dollar with a slightly smaller glass window on one side filled with a solution or suspension of a similar crystals that are very interesting when viewed under my microscope.

[beratdagsever]

You can use ferrofluid for this purpose. İts very hard to clean but u can see magnetic parts on this things

[juliavixen]

You want to get what's known as a "Forensic Magnetometer" It will read the bits off a floppy disk.

You reminded me about when I was looking for thermochromic sheets to build my own thermal vision camera... Had the same inpedment.

[superme]

Open up the casing so that you can press the magnet paper right up against the disk.

[LionelN]

I've been told that the magnetic tape on a (legacy) subway paper ticket or train ticket was highly magnetized in order to be more robust. Maybe your detector might show something on that kind of stuff ?

[jaraluce]

You can make a magnetic viewer, you need 2 pieces of optical glass and ...

[midclock]

There's a way to read the floppy disks optically: with modded a FD drive

[SrinadhPeddinti]

wow! super keep doing these type of stuff and never ever add AI voice to these best videos.

[rwd]

Could a floppy handle an electron microscope? Would that type of scope even show it in a way worth seeing?

Maybe Ben @Appliedscience would know 🤔 I'm curious to see now also. I use to have games saved on floppy back in the day and now a single game takes up more storage than anyone back then would believe 🤣

[AaronALAI]

🤔 hmm is it possible that your viewing film idea would work to view bits if you left the film in place for a long time, or maybe put the liquid of the film directly onto the diskette surface.

[DeepStateDestroyer]

Where can I buy this and what’s it called?

[johnqueen]

Ive got two of those rock auto magnets, but not those 2