Magnets

[Sevenbone]

How long do permanent magnets last like Neodymium magnets?

[JBDivmstr]

Sorry, I don’t know the answer to your question. But, here’s a link to a site that might have the answer.

http://www.kjmagnetics.com/

ETA: Please post any info you get. I’m kind of curious about that, myself.

[Nametag]

Per the FAQ:

24. Will my neodymium magnets lose strength over time?
    Very little. Neodymium magnets are the strongest and most permanent magnets known to man. If they are not overheated or physically damaged, neodymium magnets will lose less than 1% of their strength over 10 years - not enough for you to notice unless you have very sensitive measuring equipment. They won’t even lose their strength if they are held in repelling or attracting positions with other magnets over long periods of time.

[scr4]

I recently heard a talk on the Alpha Magnetic Spectrometer; they tested the same magnet assembly in 1997 and 2010, and found no detectable change (cite).

[JBDivmstr]

@Nametag

Per the FAQ:

Thanks Nametag!

(I would’ve done it, but I was pressed for time.)

[anson2995]

Magnets… How do they work?