For example, nobody knows where the moon's weak, erratic magnetic field came from: was the moon bombarded by magnetic meteors, or did it once have its own strong internal magnetic field that has decayed over time?
Creating a magnetic field using electricity is easy: an electric current flowing in a wire generates a magnetic field around that wire.
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In accordance with an example embodiment of the present invention, an apparatus comprises: a material attachable to skin, the material capable of detecting a magnetic field and transferring a perceivable stimulus to the skin, wherein the perceivable stimulus relates to the magnetic field.
At the same time, that gas must be prevented from touching the walls of the reactor by confining it in a powerful magnetic field known as a magnetic bottle.
The metal returns up the outer cylinder, and electric currents create a magnetic field.
It would be nice to test this directly by measuring the magnetic field of a pulsar.
In particular, every electron has its own magnetic field aligned with the axis of its spin.
Then, this device would make sound, because it has magnetic field like light streaming.
This is filled with gas and fine wires, and is permeated by an intense magnetic field.
But gamma-ray telescopes are also confused by charged particles trapped in the earth's magnetic field.
But since the wind consists of charged particles, it will interact with a magnetic field.
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It also found that Ganymede, the largest moon in the solar system, has a magnetic field.
Instead, the coil is pulled through the external magnetic field, which induces a voltage across it.
But because these particles are electrically charged, they also interact with the Earth's magnetic field.
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Moreover, there is (controversial) evidence of a long-term weakening trend in the magnetic field strength of sunspots.
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Was its magnetic field disrupted as the magma in its mantle cooled, exposing it to solar winds?
One of them, iTesa, is to record the magnitude of the magnetic field around the phone during orbit.
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In addition, it is further evidence that the great fish can navigate, possibly using the Earth's magnetic field.
Until now, scientists thought the effects of the magnetic field were so weak that they could be ignored.
That, in turn, induces a magnetic field oriented in the opposite direction to the field created by Jupiter.
Type-I superconductors are simpler to explain, but of limited use since they cannot coexist with a magnetic field.
This means the soap and the materials that it dissolves can be removed easily by applying a magnetic field.
The Boston University team say the streams originate in the magnetic field near the edge of the black hole.
The existence of a magnetic field on Ganymede, the biggest moon of Jupiter.
One effect of the intense magnetic field would be to quench radio pulses.
There, its magnetic field is detected and the signal sent to a display.
It is this induced magnetic field that Galileo measures when it flies past.
The Sun's changeable magnetic field is generated at the boundary between these two layers, where strong electric currents flow.
And when a magnetic field line vibrates, he says, it makes an electric field which excites current in wires.
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The result was that the nail could attract little bits of iron on a table thanks to the magnetic field.
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