He was a magnetic man of steel. Doctors at a New Delhi hospital removed 39 coins and 37 magnets from a man’s intestine after he swallowed the metals under the assumption that ”zinc helps in ...

The rotor is a styrofoam sphere with neodymium magnets embedded around its equator ... [IamWe]’s calculations show that the single CR2032 coin cell should power this motor for over two years.

The magnetic field is shown by lines with arrows that point from north to south. You can tell how old some coins are by testing them with a magnet. 5p and 10p coins made before January 2012 are ...