All About Magnetism and How it Works From your clothes to your desk, every bit of matter is made of tiny particles called atoms. Atoms have negatively charged electrons that spin around them. Most of the time, the electrons spin in random directions. When the electrons all spin in the same direction, though, they create [...]
Learning Resources Iron Filings Fine Iron Filings Magnetic Iron Powder for Magnet Education and School Projects - Discover The World of Magnetics & See Magnetic Lines of This Unseen Force & More Iron filings are conveniently and permanently encased in durable plastic Explore magnetism and magnetic fields without a mess Includes 5 durable clear plastic [...]
What is the magnetic force? The magnetic force is a consequence of the electromagnetic force, one of the four fundamental forces of nature, and is caused by the motion of charges. Two objects containing charge with the same direction of motion have a magnetic attraction force between them. Similarly, objects with charge moving in opposite [...]
N35 And N52 Magnet In the marketing process, some customers do not understand the meaning of the N35, N52 magnet, then what is the matter? In the market, we talk about the neodymium iron boron magnetism. Actually, there are many material grades in the strong magnetism. The magnetic energy product in each grade is different. [...]
Chemically Controlled Magnetic Material Magnets are common in physics classes at school, but almost no chemistry classes are involved; researchers have successfully used chemical methods to control the magnetic properties of ferromagnetic substrates. Physical methods may affect the direction of the magnetic field. The chemical method in this example finely controls the selected ferromagnetic material [...]
Three Factors Affecting Magnetic Force of Magnet In the recent work, many customers are asking if the magnet will demagnetize? What is the longest life of a magnet? When will the magnet demagnetize? Waiting for a series of such questions, I will probably share with you the information I have learned in the magnet industry. [...]
Why compass can be inaccurate Compasses are brilliantly useful but they can sometimes lead us astray, because of two quite different problems called declination (or variation) and deviation. Here's why. compass Declination (variation) Earth spins about an axis (a kind of invisible rod) running through the north pole (sometimes called the geographic north [...]
How do compasses work? Artwork: Earth behaves as though it has a giant bar magnet built inside it. But the magnet is the opposite way around to how you might think, with its south pole up near Earth's actual (geographic) north pole and vice-versa. A compass needle points north because the north pole of the [...]