The resulting magnet's strength depends on the amount of force used to move the domains. Its permanence, or retentivity, depends on how difficult it was to encourage the domains to align. Materials that are hard to magnetize generally retain their magnetism for longer periods, while materials th...
Iron is one of three basic metals that can be magnetized. Creation of a permanent magnet requires special equipment, as the iron rod would need to be heated past 1418 degrees Fahrenheit. But a temporary magnet can be created using simple household materials. Temporary magnets are safe to create...
To make a magnet repel a metal, one must first understand the properties of a magnet. A magnet has two poles, a north pole and a south pole. When magnets are placed near each other, opposite poles attract and like poles repel one another. When a metal enters a magnetic field, all of...
I don't think you quite understand what I am going to do, I'm going to use a solenoid made from wires from an extension cord. I'm not going to use the Earth's North and South poles to magnetize my circular magnet, but instead, a very powerful solenoid wrapped around it. Recommend...
By the 12th century, people had discovered that they could use lodestone to magnetize pieces of iron, creating a compass. Repeatedly rubbing lodestone along an iron needle in one direction magnetized the needle. It would then align itself in a north-south direction when suspended. Eventually, sci...
You can magnetize them again by rubbing a magnet on it. Putting the 'Electro' in 'Electromagnet' Since you need an electrical current to operate an electromagnet, where does it come from? The quick answer is that anything that produces a current can power an electromagnet. From the small ...
You can magnetize them again by rubbing a magnet on it. Putting the 'Electro' in 'Electromagnet' Since you need an electrical current to operate an electromagnet, where does it come from? The quick answer is that anything that produces a current can power an electromagnet. From the small ...
In a typical reed switch, the two contacts (which look like metal reeds) are made from a ferromagnetic material (that means something as easy to magnetize as iron), plated with a hardwearing metal such as rhodium or ruthenium (to give them a long life as they switch on and off), and...
Pickups are designed to magnetize the vibrations of your guitar strings or "pick them up" and transfer them as an electrical signal. If the strings above your pickups are old or worn out (or both), the quality and clarity of those vibrations are going to suffer as well. One of the simp...
Magnetize It You can buy magnets to mount your poster on the wall. Buy round or square magnets online or at your local hardware store. Use double-sided tape to stick one magnet to the wall that corresponds with each corner of your poster. Place the poster on the wall and put the second...