Experiments suggest an unusual magnetic material could help harness energy from Earth’s rotation. But not everyone is convinced ...

As Earth rotates and part of its magnetic field remains ... an opposing electric force, ultimately leaving charges static (this does not apply in places where the force a conductor feels is ...

Electrets produce a semi-permanent static electric field, similar to how a magnet produces a magnetic field. The ones in microphones are very small, but in the video after the break [Jay Bowles ...

"Because the m≠0 components of Earth's field produce no net force on charges rotating with Earth, they cannot be used to drive an electric current ... "In any conductor carried by Earth's ...

If the temperature of a metal conductor increases, the ions of the metal vibrate more vigorously. Hence, for a metal, resistance increases with increasing temperature. Often the increase in ...

To investigate experimentally how the resistance of a metallic conductor at constant temperature ... This will result in greater resistance. Water Electric shock Do not set up the experiment ...

An Australian-led study has found unusual insulating behavior in a new atomically-thin material—and the ability to switch it on and off. Materials that feature strong interactions between ...