this post was submitted on 08 Mar 2024
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Asklemmy
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I was talking to my husband who has been traveling for work to an industrial site, and he sent me a picture that included a "permanent magnetic lifter".
They look like this: https://www.magnet-sdm.com/wp-content/uploads/Permanent-magnetic-lifter.jpg
I had never heard of these and wondered how they worked - how is it possible to "turn off" a magnet without electricity??
I found a video where someone explains how this is possible: https://www.youtube.com/watch?v=PMma3OJUHhs
I got one of the smallest of these as a gift for my husband. This tiny thing is strong enough to lift 68kg. It's strong enough to lift me!
https://i.pinimg.com/736x/b4/01/24/b401240f2c83f2ba6d95b91f50432a40.jpg
This is an ingenious use of magnets! Thank you for sharing. I feel like I know something the general public doesn't know, making me feel oddly powerful. hahaha
Neat. I use small versions of those at my job all the time. I've always wondered how those worked.
How much do the small ones cost?
The key chain magnet rated for 60 lbs was $54.95 AUD and the larger one rated for 165 lbs was $119.95 AUD.
The Australia tax is real, I imagine that little key chain is like $20 in the States.