However, some work only at extremely low temperatures, and others pick up only very lightweight materials, like iron filings. Contents Making Magnets: The Basics Making Magnets: The Details Why Magnets Stick Magnet Myths Making Magnets: The Basics Lodestone, seen here, is a form of ...
Most MRI systems use a superconducting magnet, which consists of many coils or windings of wire through which a current of electricity is passed, creating a magnetic field of up to 2.0 tesla. Maintaining such a large magnetic field requires a good deal of energy, which is accomplished by supe...
an English physician and amateur scientist, began to studymagnetismand static electricity. He repeated the research of Thales of Miletus, rubbing objects together and charging them by friction. When one object attracted or repelled the other, he coined the term "electric" to describe the forces ...
basic forces we are familiar with, such as gravity, electricity, mechanics and heat, scientists start by trying to understand how they work, what they do, are there any formulas that can be made to describe (and thus predict) their behavior so we can begin to control them, and so on. ...
to generate electricity. Depending on the kind of magnet used, a rotating electric generator can have magnets placed in different locations and can generate electricity in different ways. Most of the electricity in use comes from generators that use magnetic fields to produce that electricity. ...
Thanks to Wooly Willy, we can see that there's a definite link between the phenomena of electricity and magnetism. A generator is simply a device that moves a magnet near a wire to create a steady flow of electrons. The action that forces this movement varies greatly, ranging from hand cr...
That's how capacitors really work but I like to visualize them as having a stretchable rubber membrane inside that blocks the flow of electricity. When voltage is applied to a capacitor the 'rubber membrane' stretches and bulges as electrons try to flow through it. The higher the voltage the...
Mining pools are operated bythird partiesand coordinate groups of miners. By working together in a pool and sharing the payouts among all participants, miners have a better chance of being rewarded than they have working alone. Most pools use a payout system based on how much work you contrib...
However, some work only at extremely low temperatures, and others pick up only very lightweight materials, like iron filings. Contents Making Magnets: The Basics Making Magnets: The Details Why Magnets Stick Magnet Myths Making Magnets: The Basics Lodestone, seen here, is a form of ...
(See How Electromagnets Work for complete details.) An electromagnet is the basis of an electric motor. Say that you created a simple electromagnet by wrapping 100 loops of wire around a nail and connecting it to a battery. The nail would become a magnet and have a north and south pole ...