Certain materials feel a magnetic force. A magnetic force can be either attraction or repulsion. How to make a magnetic compass Learn how to make a magnetic compass.

In this video, Jonny Nelson introduces an animated explanation of electromagnetism. Electromagnetism is due to the magnetic fields around electric currents. The fields can cause forces with other ...

Researchers hypothesize a fifth force of nature that could explain the intricate relationship between dark matter and dark ...

And the way you do this is not by having one book on electromagnetism, and another book on the weak interactions, and so on, but to have just one book on all the forces of nature. A simpler ...