This means that their magnetism is there all the time and cannot be turned on or off as it can with an electromagnet. Converting a magnet to a non-magnet is called demagnetisation. Magnets are ...

Meanwhile, the magnetic poles are defined as the points where the Earth's magnetic field meets the surface, and are the same ...

According to Militzer, Earth, which has a neat, bar-magnet-like magnetic field generated by its molten iron core, Uranus and ...

A scientist simulated the contents of the ice giant worlds, and found that a fluid layer may explain each planet’s strange ...

Diamond rain? Super-ionic water? These are just two proposals that planetary scientists have come up with for what lies ...

If you need help visualizing magnetic fields, these slow-motion video captures ... for a person used to a bar magnet. We should advise you before you watch the video below the break, if you ...

How a Generator Works When an electric current flows through a wire, it generates a three-dimensional magnetic force field around the wire, similar to that surrounding a bar magnet. Magnets are ...