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magnet (0 words) |
 | The crystals are used as magnetic "surveyor's spirit levels" that ensure that nests are aligned correctly and do not become lopsided, as it is believed that the crystals help the hornets to assess the symmetry and balance of the cells by comparing the magnetic field with the gravitational field. |
| Powerful magnetic fields in the vicinity of a television or monitor can distort the image and in some cases permanently magnetise the tube which leads to coloured patches on the screen and the tube must then be demagnetised or degaussed. |
| The magnetic history of the Earth as recorded in rocks in the various continents is the same but the the orientation of the magnetic information in the different continents is different thus indicating that the continents have moved over the Earth's surface. |
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magnetism — FactMonster.com (115 words) |
| electromagnet - electromagnet electromagnet, device in which magnetism is produced by an electric current. |
| pole, in electricity and magnetism - pole pole, in electricity and magnetism, point where electric or magnetic force appears to be... |
| magnetic flux - flux, magnetic flux, magnetic, in physics, term used to describe the total amount of magnetic field... |
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