[ETL]

Around a year ago, I ordered a neodymium (unsure of spelling) magnet. It had a loop which screwed onto it so you could attach a cord. It was unbelievably strong. I use it to pick up lost or hard to find nuts, bolts, nails, etc. in the yard.

Interesting. Hadn't heard of them before.

Neodymium magnet

A neodymium magnet (also known as NdFeB, NIB or Neo magnet), the most widely used[1] type of rare-earth magnet, is a permanent magnet made from an alloy of neodymium, iron and boron to form the Nd2Fe14B tetragonal crystalline structure.[2]

Developed independently in 1982 by General Motors and Sumitomo Special Metals,[3] neodymium magnets are the strongest type of permanent magnet commercially available.[2][4]

They have replaced other types of magnets in many applications in modern products that require strong permanent magnets, such as motors in cordless tools, hard disk drives and magnetic fasteners.

https://en.wikipedia.org/wiki/Neodymium_magnet

[itsahoot]

You can get a couple pretty good magnets from an old hard drive, I have many because we disassemble all our old had drives before disposal.

This guy claims to be the only person that understands magnetism. For what its worth he is entertaining.