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regular magnets

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How can it be regarded as a valuable strong magnet, and how to distinguish

How can it be regarded as a valuable strong magnet, and how to distinguish Now many people know that strong magnet is more valuable, but they are not very clear about what kind of strong magnet is, because there are many kinds of magnets, and some people ask whether it is strong magnet if the [...]

If a magnet keeps doing work, will its magnetism be weakened or even disappear?

If a magnet keeps doing work, will its magnetism be weakened or even disappear? There are many misconceptions about magnets and how they are magnetic. Since the magnetism of a magnet is invisible and intangible, it will be more abstract in the eyes of many people, and it is difficult to reflect it intuitively. First [...]

Magnetic Domains

Magnetic Domains In ferromagnetic materials, smaller groups of atoms band together into areas called domains, in which all the electrons have the same magnetic orientation. That's why you can magnetize them. See how it works in this tutorial. Electrons are teeny tiny magnets. They have a north and a south pole and spin around an [...]

How are magnets made?

How are magnets made? More than 20 years of doubts have finally been solved Magnets, we remember deeply when we were young, it is a magical thing. After class, I played a magnet fight in the classroom. Two magnetic fighters each took a magnet and placed it on both sides of the center line at [...]

A girl swallowed toy magnet by mistake, and the doctor took it out smoothly

A girl swallowed toy magnet by mistake, and the doctor took it out smoothly 10 days ago, a 7-year-old girl Jiajia (pseudonym) accidentally put 2 toy magnets into her esophagus while playing with her classmates, and then she vomited and cried uneasy. , and then went to the Second Department of General Surgery of our [...]

How Magnets Work

How Magnets Work You probably know that magnets attract specific metals and they have north and south poles. Opposite poles attract each other while like poles repel each other. Magnetic and electrical fields are related, and magnetism, along with gravity and strong and weak atomic forces, is one of the four fundamental forces in the [...]

Doctor, the child eat magnet, what should I do?

Doctor, the child eat magnet, what should I do? "Doctor, the child has eaten the magnet, what should I do?" On the morning of May 18, a mother and child came to the Hengjie Town Health Center in Haishu District of Ningbo City. The 7-year-old child accidentally swallowed the magnet. It turned out that the [...]

What to do if you swallow a magnet

What to do if you swallow a magnet If the magnet is swallowed in the stomach, if the general condition is good and there are no related symptoms, it can be temporarily observed; if it cannot be discharged, cathartics can be taken orally, or the foreign body can be removed directly under the endoscope. 1. [...]

Why can’t small magnets be put together with big magnets?

Why can't small magnets be put together with big magnets? There is no such requirement, that is to say, this statement is wrong. Farewell and small magnets can be stored together. During their storage, the magnetic attraction force of the large magnet will not be separated from that of the small magnet. The weakening of [...]

Magnet Myths

Magnet Myths Every time you use a computer, you're using magnets. If your home has a doorbell, it probably uses an electromagnet to drive a noisemaker. Magnets are also vital components in CRT televisions, speakers, microphones, generators, transformers, electric motors, burglar alarms, cassette tapes, compasses and car speedometers. In addition to their practical uses, magnets [...]

Why Magnets Stick

Why Magnets Stick If you've read How Electromagnets Work, you know that an electrical current moving through a wire creates a magnetic field. Moving electrical charges are responsible for the magnetic field in permanent magnets as well. But a magnet's field doesn't come from a large current traveling through a wire — it comes from [...]

The Details of Making Magnets

The Details of Making Magnets To make a permanent magnet, all you have to do is encourage the magnetic domains in a piece of metal to point in the same direction. That's what happens when you rub a needle with a magnet — the exposure to the magnetic field encourages the domains to align. Other [...]

The Basics of Making Magnets

The Basics of Making Magnets Many of today's electronic devices require magnets to function. This reliance on magnets is relatively recent, primarily because most modern devices require magnets that are stronger than the ones found in nature. Lodestone, a form of magnetite, is the strongest naturally occurring magnet. It can attract small objects, like paper [...]

Magnetics for Environmental Applications

Magnetics for Environmental Applications Magnetics, as related to the environmental field, is a technology used for locating subsurface iron, nickel, cobalt and their alloys which are typically referred to as ferrous materials. The theory of magnetics has been adapted to specialized tools called magnetometers which are capable of measuring ambient magnetic fields emanating from terrestrial [...]

Meteorites, Magnets, and Metal Detecting

Meteorites, Magnets, and Metal Detecting I’ve probably been watching too much “Meteorite Men” on the Science Channel. I’m starting to see little rusty rocks everywhere I go, and since I visit a lot of gravel bars in the course of rockhounding and gold prospecting, I’m getting nervous that I’ve passed over a valuable piece of [...]

SCIENTISTS PLAN A MAGNETIC FISHING TRIP TO FIND A METEOR

SCIENTISTS PLAN A MAGNETIC FISHING TRIP TO FIND A METEOR In 2014, the first known meteor from outside of our Solar System crashed into the ocean near Papua New Guinea. It was one and a half feet wide, but broke up into smaller fragments. Scientists will attempt to bring pieces about 0.1 millimeter (about the [...]

Astronomers want to use magnets to salvage underwater meteorites

Astronomers want to use magnets to salvage underwater meteorites Astronomers plan to use a mattress-sized magnet to salvage meteorites from the ocean, according to a report on the website of Popular Mechanics on August 18. On January 8, 2014, a meteor exploded over the Pacific Ocean north of Papua New Guinea at a speed of [...]

President Biden has decided not to restrict imports of ndfeb magnets

President Biden has decided not to restrict imports of ndfeb magnets. The US "Political News Network" said that the neodymium magnets imported by the United States mainly come from China, and Biden's decision avoided a new trade war between the United States and China and other economies. According to a report by the "Political News [...]

Oxygen from the moon! China has achieved breakthrough results

Oxygen from the moon! China has achieved breakthrough results If one day we could actually live on the moon, what would be the most important thing? Yes, it is oxygen. "Produce the first mouthful of oxygen for the Chinese on the moon as soon as possible", this is the mouth of Guo Linli, a researcher [...]

Study finds magnets could solve oxygen supply problems for astronauts during long-term space travel

Study finds magnets could solve oxygen supply problems for astronauts during long-term space travel A team of experts from the University of Warwick has demonstrated a new method for producing oxygen in microgravity conditions that involves magnets. Magnets are used to attract gas bubbles to condense in an area, making it easier to harvest them [...]

The world’s strongest magnet will be shipped to France to assemble an “artificial sun”

The world's strongest magnet will be shipped to France to assemble an "artificial sun" that can suck aircraft carriers off the ground The International Thermonuclear Experimental Reactor (ITER) project said recently that the world's strongest magnet has been manufactured for ten years and is ready to be shipped to France to assemble an "artificial sun" [...]

Can magnetic lock without keyhole cry a thief? A magnet can be easily cracked

Can magnetic lock without keyhole cry a thief? A magnet can be easily cracked A magnetic lock without a keyhole claims to make it impossible for thieves to start, and can only be opened by attaching a matching, magnetic key to the lock body. Recently, this lock with a unique appearance and a tall name [...]

Up to 75% depend on China! U.S. no longer restricts imports of neodymium magnets

Up to 75% depend on China! U.S. no longer restricts imports of neodymium magnets On September 21, the United States announced that it would no longer restrict the import of neodymium magnets. Neodymium magnets are rare earth materials commonly used in commercial and military applications. According to a report, as the application of such magnets [...]

Giant Magnetoresistance

Giant Magnetoresistance Have you ever sat around on a rainy day contemplating your computer’s hard disk drive? Though often taken for granted, this magnetized device makes it possible to store and retrieve information digitally – in everything from video games to iPods to your personal computer. The first hard disk drives (HDDs) date back to [...]

Permanent Magnets: A Study in Sticktoitiveness

Permanent Magnets: A Study in Sticktoitiveness There are two basic kinds of magnets  permanent and temporary. We'll take on permanent first  which is appropriate, because before humans could invent and exploit temporary magnets, they had to discover the permanent kind first. People first happened upon magnets sometime before 600 BC with the discovery of the [...]

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