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...
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...
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...
One question: do you find the need to actually place the metal sheets in movement trays, or do you just cut out the metal to the size you need and leave it at that? Exalt This Post +1Exalt This Post +1 2009/11/16 23:18:35 Subject: Re:Modeling - How to magnetize your bases!
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...
I wanted to put between the magnets, metal pellets from in a thought that one of the poles will reject the pellets(north or south) But I've seen that both poles attracts the pellets. Is there a way to make magnetize reject the pellets so that they will be restless between two magnets...
The electricity magnetizes the electromagnet. Increasing current boosts the electromagnet's magnetic force, and decreasing current lowers the magnetism. When the current jumps to unsafe levels, the electromagnet is strong enough to pull down a metal lever connected to the switch linkage. The entire ...
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 ...
Magnets can be found in the material magnetite. These natural magnets are quite weak, however; those produced artificially are much stronger. Even stronger than these are electromagnets, which are made by running an electrical current around a piece of iron. The electrical field will magnetize the...
completely and attach both ends of the wire to a battery. Once the circuit is closed, the metal (and the wires around it) will create a magnet and whatever magnet is nearby will be attracted or repelled by it. This is a much more complicated, but more permanent way to magnetize metal...