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hyperphysics

Magnetohydrodynamics

A magnetohydrodynamic generator has been described as a magnet on the tail of a jet engine. A super-hot plasma is created, ionizing the atoms of the fuel mixture.

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Brain-controlling magnets: how do they work?

Transcranial magnetic stimulation or TMS alters the activity of the brain allowing certain parts of the brain to be temporarily deactivated.

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Magnetic Confinement Demonstration!

As part of the Internet Plasma Physics Education eXperience (IPPEX) project, the purpose of this program is to demonstrate the difficulty of trying to contain a plasma inside a tokamak by using ...

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Steering Science: Make a Homemade Compass

A simple activity about magnetism. All you need is a sewing needle, a magnet, a pair of pliers, a cork, scissors, a cup or bowl and water.

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Magnetic field Demonstration in a current loop

The site demonstrates the effect of a magnet field when introduced on a conducting wire.

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hyperphysics

Solenoid

A long straight coil of wire can be used to generate a nearly uniform magnetic field similar to that of a bar magnet. Such coils, called solenoids, have an enormous number of practical applications.

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7-Foot Bubble Chamber

Description of the first particle detector of its type at Brookhaven in which the chamber through which the particles passed was surrounded by a superconducting magnet.

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Lenz's Law

A moveable diagram including current flow and magnetic field lines that shows how the movement of a bar magnet influences the induced current in a stationary conductor.

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Measurements on a Superconductor

Graph of resistance against temperature for YBCO, and two short movies of a magnet levitating above a superconductor. Great fun to see the movies - understanding how this happens is more challenging

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Exploratorium Science Snacks - Diamagnetism

A grape is repelled by both the north and south poles of a strong rare-earth magnet. The grape is repelled because it contains water, which is diamagnetic.

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