Suppose I take a 1 kg ball and hold it near the surface of the Earth. What would be the gravitational force the Earth exerts on this ball? And I could say "g" is: The magnitude of this force would ...

Researchers in the Netherlands have shown that it is possible to control the spin of a single electron by using an electric field rather than a magnetic field, as is usually the case. The breakthrough ...

A static electric field can be used to manipulate the superconducting state of metallic superconducting thin films, according to new experiments by researchers in Italy. The effect, which was first ...

We all use antennas for radios, cell phones, and WiFi. Understanding how they work, though, can take a lifetime of study. If you are rusty on the basic physics of why an antenna radiates, have a look ...