Magnetic Toy and Education (Be careful & Don’t swallow any magnet) 1. Magnetic Pen The POLAR Pen is a creation developed by designer Andrew Gardner.
There is a magnetic field around the magnet. There is a magnetic field around the magnet, and the interaction between the magnets is mediated by
The greatest advantage of high-temperature resistant magnets is that they can create a strong magnetic field around them at high temperatures without consuming their own