3 ms·
It's not the magnet's curie point; it's the curie point of the metal the magnet sticks to. And I guess it's not really the curie point, just the point where th
by jrootabega 6y ago
It's not the magnet's curie point; it's the curie point of the metal the magnet sticks to.
And I guess it's not really the curie point, just the point where the force becomes weaker than the spring
- throwaway_pdp09 6y agoThat sounds wrong. From wiki "In physics and materials science, the Curie temperature (TC), or Curie point, is the temperature above which certain materials lose their permanent magnetic properties". What you're saying is that metals stop being attracted to magnets above a certain, rather low temperature. Possible but very hard for me to imagine.
- vincnetas 6y agoThats exactly whats happening. If magnet was to loose its magnetic properties, you would have one time use cooker with permanent "non magnet" ofter first batch. Metal above certain temperature also is not attracted by magnet.
- amluto 6y agoIf you take a permanent magnet, heat it above the Curie point, then cool it again, it’s no longer magnetized. So you would have a one-use rice cooker. Magnets stick well to ferromagnetic materials. If you heat a ferromagnetic object, e.g. a piece of steel, above Tc, it stops being a ferromagnet and magnets will stick to it much less firmly. And, when you cool it, it will once again be ferromagnetic.
- throwaway_pdp09 6y agoThanks @amluto, @vincnetas. I really didn't know that.