Michael Faraday's Magnetic Stones

Origin
Michael Faraday was a scientist whose work focused on electromagnetism, researching magnetism’s interaction with light beams. His work, although not mathematically complex, helped inspire future scientists including James Clerk Maxwell and Albert Einstein.

The magnets originated from one of his Christmas Day lectures on electricity at the Royal Institution of London.

Effects
When rubbed together, the magnetic attraction of any object increases. Non-ferrous metals become highly magnetized and tough to separate when locked together. With constant use, they can alter the electrical pathways in the nervous system, causing seizures.