Electronics and computers.

In computers magnets are used for recording data, for example, on memory devices. Magnets modify the position of magnetic material on the data carrier in segments, which then present binary data. Subsequently the computer interprets the profile from each segment of magnetic material and processes them into data recognizable to the average user. In small speakers located in laptops, televisions and radios too use magnets. Situated in the speaker, a wire coil and magnet change electronic signals into sound vibrations.

Magnets are all around us.

Magnets provide us with a wide arsenal of uses in many industries of industry. In electric generators, they convert mechanical energy into electricity, simultaneously electric motors use magnets to transform electrical energy in reverse into mechanical energy. During recovery, electromagnets in lifts catch and move large elements of metal, some of which weigh thousands of kilograms. Mines use magnetic separators to isolate valuable metal ores from crushed rock. In the food industry, such magnetic separators remove minuscule elements of metal from cereals and remaining granular or liquid food items. Farmers raising cattle use magnets to pick out bits of metal that cows can consume in the pasture. A cow eats the magnet together with its feed. It's definitely not a jest. As the magnet travels through the animal's organism, it catches small pieces of metal.

Magnets in health service at work and home.

Magnets are found in some commonly operated medical devices, such as magnetic resonance imaging machines. They exploit a powerful magnetic field to generate a radar radio signal from inside the body, employing the signal to create a strong, detailed view of bones, organs, and other tissues. The magnet in such devices is exceptionally intense - thousands of times more potent than ordinary kitchen magnets. Another medical application of magnets is the treatment of tumors. The physician injects a magnetically sensitive solution into the tumor region and then employs a powerful magnet to release thermal energy in the contaminated area. The high temperature kills cancer cells without damage to healthy organs.
According to the president of the Polish Radiological Medical Society, the number of radiology specialists is currently insufficient. This field is rapidly developing and opens wide perspectives, so for those deciding on this profession, it is a quite far-sighted step. The demand for these specialists is growing in the job market, especially in the capital.
Jobs in Warsaw both in performing magnetic resonance imaging and in other positions in this field can be found on the Jooble job search engine page.

What can you do with a magnet and a battery?

With a magnet and a battery, you can build a simple homopolar motor. This type of direct current electric motor uses the principle of continuously cutting magnetic field lines with a conductor. In a homopolar motor, the conductor rotates around a fixed axis, being positioned perpendicular to a static magnetic field. As the force acting on the conductor is continuous and always directed in one direction, the motor does not require a commutator, but still needs slip rings. 'Homopolar' means that the electrical polarization of the conductor and the magnetic poles do not change, which means there is no need for commutation.
Want to do an amazing science project at home? Build your own homopolar motor! It's simple and a great way to demonstrate how electric current interacts with a magnetic field. Here's what you'll need:

Neodymium magnet: This is a very strong type of magnet that is key to the project. You can find it in electronic stores or online. For example, you can use a magnet with the product code MW 12x6 / N38 - neodymium magnet, which is available from us or MW 12x4 / N38 - neodymium magnet.
Battery: A standard AA or AAA battery will be perfect. Make sure it's new to have full voltage.
Copper wire: It must be clean and well-conducting. Copper wire can be found in an electronics store or you can recover it from unnecessary electronic cables.

Once you have gathered all the materials, bend the copper wire into a shape that allows it to rotate around the battery - it can be a simple 'U' shape or a spiral. Then place the neodymium magnet at one end of the battery, and position the bent ends of the wire so that one touches the magnet and the other directly touches the battery.
When you complete the assembly, the wire will start to rotate! You can experiment by changing the shape of the wire or using batteries of different voltages to see how it affects the speed of the motor's rotation. This is a fantastic way to learn through fun and experimentation.

Remember only to be cautious – neodymium magnets are very strong and should not be placed near electronic devices and magnetic media like credit cards or hard drives.

The strongest magnets, made from a mixture of neodymium, boron, and nickel, are known for their impressive pulling force, making them an ideal tool not only for industry but also for home applications. Whether it's for extracting tiny metal filings from an eye or searching for a lost needle in a haystack - our magnets are indispensable. We offer three main categories of neodymium magnets: cylindrical magnets, lamellar magnets, and annular magnets, each tailored to specific needs and applications. We invite you to explore our offer and discover how neodymium magnets can make your daily life easier.

Every day with a magnet?

Even though it most likely is not obvious, to you, but in a most homes you will discover many magnets. Magnets on refrigerators hold papers, bottle openers as well as personal small souvenirs suspended on typically metal refrigerator doors. A pocket compass employs a magnetic needle to indicate the route north. The black magnetic strip on the back of a credit card stores information in the identical way, as a computer's hard drive. Hoovers, blenders also washing machines possess electric motors, which work thanks to the employment of a magnet. Magnets can be found in phones, doorbells as well as in model cars. The world around us is filled with magnets.