The amount of magnetic energy packed into these tiny ... This method uses ribbons of an iron-copper-boron alloy and exposes it to an atmosphere of ammonia and hydrogen at 550°C for 28 hours ...

A permanent magnet is always magnetic. It has an invisible magnetic field. Only certain materials, such as iron, feel a magnetic force. Permanent magnets can come in lots of different shapes and ...

In 1982, two researchers working independently of each other developed the neodymium–iron–boron magnet, which was stronger than any known magnet. It revolutionized the low-cost mass production ...

The solder will bubble away the enamel and tin the copper underneath in the ... melting a small amount of solder on the iron, then push the tip of the magnet wire a small distance into the molten ...

Gold hit a new record high and iron ore weathered a Trumpian storm, but lithium, coal and uranium battled in ... Read More ...