3 ms·

I have a bunch of old (5-15 yrs old) HDD hard drives in a closet. Would that help? I don't know what to do with them.

cronix 4y ago
I took mine out and use them as refrigerator magnets. They are awesomely strong. No more cheap magnets sliding down the refrigerator not holding weight. Edit: Daughter really liked using the shiny platters in art projects (after degaussing with the RE magnets). I've reused some of the dc motors in other projects (arduino type stuff). All that's left is the small circuit board, read/write head and metal body to recycle.
- hinkley 4y ago
  I have a couple too, but I broke one by letting it leave my hand too far from the surface.
- rlpb 4y ago
  We've put away all our awesomely strong fridge magnets while we bring up a child. It's not worth the risk of him swallowing them. I don't trust small magnets to stay inside larger plastic frames, either.
- gerdesj 4y ago
  Bear in mind that some of your more elderly relos might have heart related hardware that might be damaged by a strong magnetic field. Luckily ... inverse squared law. You are probably safe if you recommend that granddad (1) doesn't rub his chest on your fridge. I have loads of the bloody things - I dismantled a Equallogic PS6something that had 30 odd discs in it for recycling the other day. I, sorry: "we" still have four more old Eqls and a stack of discs removed from old PCs. You can break the case of a 3.5" disc with a lump hammer and cold chisel and then unscrew or break out the magnets quite quickly. I need to look into breaking a 2.5" disc. You could speed things up with a bandsaw with a suitable blade and a careful cut. (1) I'm called Granddad by two little girls, so let's ditch the ageist bollocks (po faced emoji). How about great granddad instead! My dad does sport a heart restart device (I can't remember the name) and it is probably not going to work very well after close contact with a neodymium magnet that nearly tore off one of my fingernails - OK I nearly did the tearing but it was the vice that did the holding with my fridge. [edit - formatting]
  - StephanTLavavej 4y ago
    It’s actually inverse cube for magnets - see https://en.wikipedia.org/wiki/Force_between_magnets https://en.wikipedia.org/wiki/Force_between_magnets : “One characteristic of a dipole field is that the strength of the field falls off inversely with the cube of the distance from the magnet's center.”

I took mine out and use them as refrigerator magnets. They are awesomely strong. No more cheap magnets sliding down the refrigerator not holding weight. Edit: Daughter really liked using the shiny platters in art projects (after degaussing with the RE magnets). I've reused some of the dc motors in other projects (arduino type stuff). All that's left is the small circuit board, read/write head and metal body to recycle.

hinkley 4y ago
I have a couple too, but I broke one by letting it leave my hand too far from the surface.
rlpb 4y ago
We've put away all our awesomely strong fridge magnets while we bring up a child. It's not worth the risk of him swallowing them. I don't trust small magnets to stay inside larger plastic frames, either.
gerdesj 4y ago
Bear in mind that some of your more elderly relos might have heart related hardware that might be damaged by a strong magnetic field. Luckily ... inverse squared law. You are probably safe if you recommend that granddad (1) doesn't rub his chest on your fridge. I have loads of the bloody things - I dismantled a Equallogic PS6something that had 30 odd discs in it for recycling the other day. I, sorry: "we" still have four more old Eqls and a stack of discs removed from old PCs. You can break the case of a 3.5" disc with a lump hammer and cold chisel and then unscrew or break out the magnets quite quickly. I need to look into breaking a 2.5" disc. You could speed things up with a bandsaw with a suitable blade and a careful cut. (1) I'm called Granddad by two little girls, so let's ditch the ageist bollocks (po faced emoji). How about great granddad instead! My dad does sport a heart restart device (I can't remember the name) and it is probably not going to work very well after close contact with a neodymium magnet that nearly tore off one of my fingernails - OK I nearly did the tearing but it was the vice that did the holding with my fridge. [edit - formatting]
- StephanTLavavej 4y ago
  It’s actually inverse cube for magnets - see https://en.wikipedia.org/wiki/Force_between_magnets https://en.wikipedia.org/wiki/Force_between_magnets : “One characteristic of a dipole field is that the strength of the field falls off inversely with the cube of the distance from the magnet's center.”