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The Sun’s Magnetic Field Is About to Reverse

Every 11 years the direction of the Sun's magnetic field flips. This article outlines what we expect to observe and experience here on Earth when it does change direction.

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Hits: 1437

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Levitation Melting

A company site describing a technique for producing small quantities of conducting material. This is a good applied physics site especially when discussing electromagnetic induction

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Hits: 3333

hyperphysics

Lenz's Law

When an emf is generated by a change in magnetic flux according to Faraday's Law, the polarity of the induced emf is such that it produces a current whose magnetic field opposes the change which ...

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Hits: 2486

hyperphysics

Motor

Electric motors involve rotating coils of wire which are driven by the magnetic force exerted by a magnetic field on an electric current. They transform electrical energy into mechanical energy.

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Hits: 4836

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Magnetism and the San Francisco Bay area

An exploration of the earth's magnetic field and the links between magnetic anomalies and the geology of the San Francisco Bay area.

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Hits: 2277

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Hans Reichenbach

Hans Reichenbach (1891 - 1953) wrote on quantum mechanics, time, induction, probability and the philosophy of science.

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Hits: 3433

hyperphysics

Electromagnet

Electromagnets are usually in the form of iron core solenoids. The ferromagnetic property of the iron core causes the internal magnetic domains of the iron to line up with the smaller driving ...

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Hits: 1592

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Michael Faraday

Very brief biography Michael Faraday (1791-1867), the discoverer of electromagnetic induction.

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Hits: 6540

Earth's magnetic field

An article about the huge magnetic field that surrounds the Earth and stretches into space.

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Hits: 3869

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How technology, not spades, revealed what lies beneath Stonehenge

An article looking at some of the techniques used in archaeological geophysics that helped in the recent Stonehenge discovery, including earth resistance, magnetometry, ground-penetrating radar and ...

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Hits: 591

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Showing 21 - 30 of 112