Another is to feed magnets to the cows. Long, narrow alnico magnets, known as cow magnets, can attract pieces of metal and help prevent them from injuring the cow's stomach. People, on the other hand, should never eat magnets, since they can stick together through a person's intestinal ...
Lodestone, seen here, is a form of magnetite and is the strongest naturally occurring magnet. Notice how this piece is attracting small strips of metal. Wikimedia/(CC BY-SA 4.0) Many of today's electronic devices require magnets to function. This reliance on magnets is relatively recent, ...
Take your magnet away from the metal and turn it around so the opposite end (the opposite pole) is now facing the metal that you just magnetized. Push the magnet toward the metal and, because the metal was magnetized by the opposite pole, the magnet should now repel the metal. Things Ne...
The closed circuit allows electricity to flow, creating a magnetic field and causing the clapper to become magnetized. The hardware of most traditional doorbells consists of a metal bell and metal clapper that, when the magnetic pull causes them to clang together, set off the chime inside. The...
Roughly 4,000 years ago, a Greek shepherd named Magnes is said to have been tending his sheep in a region of northern Greece called Magnesia. He took a step and suddenly found thatthe nails that held his shoe together and the metal tip of his staff were stuck fast to the rock he was...
Lindsay McIntosh-Tolle is a former outdoor instructor at REI. She has taught classes in backpacking, map and compass navigation, how to use a GPS and others. She has been finding her way into spectacular backcountry destinations for more than 18 years. ...
This is necessary because un-plated neodymium magnets are highly prone to corrosion, and will quickly lose their magnetic properties in the presence of moisture. 8. Magnetization At this point, the magnets have a "preferred" direction of magnetization, but they are not magnetized. They are ...
If your watch gets magnetized, take it to a professional watchmaker for demagnetization. Protect from Extreme Temperatures: Avoid exposing your watches to extreme temperatures, both hot and cold. Rapid temperature changes can affect the movement and accuracy of the watch. It’s best to store your...
I have done a test with a piece of ring-shaped metal, and guess what? It works! So after I get a new ring magnet to use (the hole on the "Chuck" magnet is too small), then I can continue with my experiments, and I can finally complete my secret device Jun 26, 2016 #91 ...
A transformer is a device that increases or decreases voltage. When it decreases voltage, it's known as a step-down transformer. You can make one using a large metal washer and some 28-gauge insulated wire. The number of windings in the secondary coil sh