When you save data to a traditional computer hard drive, for example, tiny, magnetized pieces of metal are embedded onto a disk in a pattern specific to the saved information. This data started life as binary digital computer language (0s and 1s). When you retrieve this information, the ...
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 ...
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...
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...
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...
Magnetic Tape- The Data is stored onmagnetic tape, which has a thin plastic ribbon. It's an SRAM (sequential randomly access memory). As a result, data read and write speeds are slower. It's primarily used to back up data. Magnetic Disk- Themagnetic diskis a circular metal or plastic...
metal "line up," causing a temporary magnetic alignment that is attracted to the magnet (the pole doesn't matter). That alignment dissipates once the magnetic field is removed and therefore, the only way for a metal to be repelled by a magnet is if it's first magnetized to the ...
place small metal objects like a paperclip near the magnetized nail, you can see that the paperclip gets attracted to the nail. how to make a compass magnet we know a compass is used to indicate the direction. any metal which can be magnetized can be made into a compass. a needle of...
While walking along, he discovered that the metal nails in his shoe and the tip of his walking staff became stuck to a rock below his feet. That first magnetized rock was referred to as "lodestones" and then "magnetite." They Were Rumored To Be An Early Weapon of War Photo: Giuseppe...
Abasic speakeris built around an electromagnet, a metal cylinder with a wire coiled around it. The electromagnet is surrounded by a permanent natural magnet. When you send an electrical current through the electromagnet, it becomes magnetized and acts like a natural magnet, with anorth poleand ...