Sentences with phrase «north magnetic polarity»
Maps depict north magnetic polarity as white and south as black.
https://www.nso.edu/ Not exact matches
The company has developed a machine that uses electricity to print the magnetic equivalent of pixels on a surface — complex patterns of north and south polarity points — allowing precise control over the topology of the magnetic fields.
As the molten rock solidified, the minerals preserved a record of Earth's polarity, the direction its north and south magnetic poles pointed at the time.
For example, scientists don't understand why the magnetic field is as strong as it is, or why the field reverses polarity — the North Pole becomes the South Pole and vice versa — every several hundreds of thousands of years, briefly vanishing in between.
Magnetic north wanders, and every few hundred thousand years the polarity flips so that a compass would point south instead of north.
The polarity of the leading sunspot alternates every solar cycle, so that it will be a north magnetic pole in one solar cycle and a south magnetic pole in the next.
Sunspot groups have a magnetic field with a north and a south pole, and, in each 11 - year rise and fall, the same polarity leads in a given hemisphere, while the opposite polarity leads in the other.
Short term solar cycles of the 27 day rotation periods, due to the polarity shifts in magnetic flux changes in the solar wind, The moon has a North / South declinational component as part of it's set of orbital parameters.