Magnet
From Wiki @ Karl Jones dot com
A magnet (from Greek μαγνήτις λίθος magnḗtis líthos, "Magnesian stone") is a material or object that produces a magnetic field.
Description
This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, and attracts or repels other magnets.
See also
External links
- Magnet @ Wikipedia
- Programmable magnets are incredibly cool @ Boing Boing
