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 ...

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 ...

Take one of these bar magnets, forexample ... Or as a stimulus to support learners to plan and conduct their own science investigations. They link to the UK Science curricula.

It might thus be difficult to visualize what is happening with a conical magnet, for a person used to a bar magnet. We should advise you before you watch the video below the break, if you are ...

Here are the eight science lessons McAuliffe planned on ... McAuliffe was planning to demonstrate magnetism with two bar magnets suspended in midair. She also planned to see how microgravity ...

ALMA observations of the protoplanetary disk around HD 142527. The white bars show the directions of the magnetic field revealed by the orientation of the dust grains. The strength of the magnetic ...