Magnetism Volume 1 | Seite 8

-Magnets appeared over 2,500 years ago.

-The earth's magnetic field is responsible for deflecting the solar wind.

-All animals, including humans, have small magnetite crystals in their brains.

-All electricity is made from magnets. When a magnet is spun inside a coil of wire, electrons start to flow from the wire. All power plants use fuel to spin magnets.

Did you know?

-The earth is a big magnet. Liquid metals deep within the earth create convection currents that in turn create magnetic force. It is believed that the magnetic force surrounding the earth makes life possible. Without the "magnetic force field" too much energy would reach us from the sun and would wipe out our atmosphere.

-A charged particle experiences no magnetic force when moving parallel to a magnetic field, but when it is moving perpendicular to the field it experiences a force perpendicular to both the field and the direction of motion.

-A current-carrying wire in a perpendicular magnetic field experiences a force in a direction perpendicular to both the wire and the field.

-While magnetized, temporary magnets act like permanent magnets.

Yeah, these where a little bit boring facts compared to the ones above.

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