Magnets are really cool. Anything that’s magnetic will stick to them. And because of the invisible magnetic field they produce around themselves, they can make things move without touching them. Here are a couple of neat things you can do with magnets to learn about how they work. But mak...
Generators - As the turbine blades turn, so do a series of magnets inside the generator. Giant magnets rotate past copper coils, producing alternating current (AC) by moving electrons. (You'll learn more about how the generator works later.) Transformer - The transformer inside the powerhouse ...
How Odometers Work How Fuel Gauges Work How Gear Ratios Work How Car Computers Work How does a speedometer in an airplane work? How Magnets Work Sources “100 Years of Speedometers — The History of Driver Information,” November 7, 2002. Found online at: http://www.siemensvdo.com/press...
He was also the first to discover that magnets have poles, or individual points where the charge is focused. And, important for electromagnetism, Maxwell observed that when a current passes through a wire, it generates a magnetic field around the wire. Hans Christian Oersted Maxwell's work was...
Generators - As the turbine blades turn, so do a series of magnets inside the generator. Giant magnets rotate past copper coils, producing alternating current (AC) by moving electrons. (You'll learn more about how the generator works later.) Transformer - The transformer inside the powerhouse ...
How Temporary Magnets Work There are different types of temporary magnets, such as soft iron and electromagnets. Soft iron temporary magnets work by aligning their atoms when exposed to an external magnetic field. Their atoms aren’t aligned all the time; only when a magnet is pushed near a...
6. Check for any magnets nearby Inside your MacBook’s lid, there’s a tiny magnet that reacts when the lid is closed. But when there are other magnets nearby that send a wrong signal to your MacBook, telling it to shut down. For example, this happens if you place your computer ato...
A microphone is a device that converts sound waves into an electrical signal. It allows you to capture audio and transmit it to various devices, such as computers, amplifiers, or recording equipment. How does a microphone work? A microphone consists of a diaphragm, a coil or capacitor, and...
Engineering How Electromagnets Work Physical Science How Magnets Work Physical Science How Solenoids Work Computer How Floppy Disk Drives Work Engineering How MRI Works Science Vs. Myth What If Earth's Magnetic Field Flipped? Advertisement How Credit Cards Work By: Melanie Radzicki McManus Cr...
Introduction to Reed Switches, Magnets and Magnetic Fields by Stephen Day. Quite a neat summary of how reed switches are used in practice, and the need to choose the right magnet to avoid the switch going on or off too many times.