Magnetism is a force of nature produced by moving electric charges. Sometimes these motions are microscopic and inside of a material known as magnets. Magnets, or the magnetic fields created by moving electric charges, can attract or repel other magnets, and change the motion of other charged ...
A similar thing happens when a charged particle moves through a magnetic field, say, near a (permanent) bar magnet . The particle experiences force. But according to the theory of relativity, you can't say that the particle is moving and the magnet isn't. From the point of view of the...
In recent years, physicists have uncovered a lot of unknown facts about black holes. Some discoveries laid the foundation for the future, while some are still blowing researchers’ minds. Here are the 15 most intriguing facts and theories of black holes that you should know. Table of Contents ...
Permanent magnets always have their magnetic force. induced magnets are ones that become temporarily magnetized when brought near a permanent magnet. For example, if a magnet is used to pick up a paper clip, the paper clip will become magnetized too, and it will be able to pick up another ...
Magnetism arises from the electromagnetic force of a moving electric charge. A magnet has an invisible magnetic field surrounding it and two ends called poles. The north pole points toward Earth's north magnetic field. The south pole points toward the Earth's south magnetic field. ...
worlds may grab the imagination more than this planet, it is just as spectacular as those, with climactic weather, fascinating natural phenomena and a history that is greater than any fictional world. No wonder then that there are so many amazing facts that you may not have known about the ...
Electrons might live forever. Scientists have estimated the minimum lifetime of the electron is about 6.6 × 1028 years – this is 66,000 ‘yottayears’. Since this is about 5 quintillion times the age of the Universe, even if electrons don’t live forever, they may as well do!
Get to know interesting facts about Earth. How old is the Earth? Earth is about 5 billion years old and there are more than seven billion people on Earth.
Over 6K fans have voted on the 20+ items on Mind-Blowing Facts About Planet Earth That Will Make You Question Everything. Current Top 3: Thanks To Ancient ...
Einstein liked to tell a story about when he was five years old and sick in bed how his father brought him a magnetic compass that was the first he�d ever seen. He was fascinated by the fact that the needle always pointed north, pulled by an invisible force. No matter how he twist...