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Other contributions come from ocean swell, eddies, and even tsunamis. [66] Sea level magnetic fields observed by satellites (NASA) [66] [clarification needed] The strength of the interaction depends also on the temperature of the ocean water. The entire heat stored in the ocean can now be inferred from observations of the Earth's magnetic field ...
Illustration of the dynamo mechanism that generates the Earth's magnetic field: convection currents of fluid metal in the Earth's outer core, driven by heat flow from the inner core, organized into rolls by the Coriolis force, generate circulating electric currents, which supports the magnetic field.
The resistive magnet produces 33.5 T and the superconducting coil produces the remaining 11.5 T. The former magnet requires 30 MW of power, the latter must be kept at 1.8 K (−456.43 °F) using liquid helium, taking 6 weeks to cool. It costs $1452 per hour to run at full field.
An illustration from Gilbert's 1600 De Magnete showing one of the earliest methods of making a magnet. A blacksmith holds a piece of red-hot iron in a north–south direction and hammers it as it cools. The magnetic field of the Earth aligns the domains, leaving the iron a weak magnet. Drawing of a medical treatment using magnetic brushes.
Eight years ago, CNEOS 2014-01-08 tore through Earth’s atmosphere at over 100,000 miles per hour.
The magnetic flux density does not measure how strong a magnetic field is, but only how strong the magnetic flux is in a given point or at a given distance (usually right above the magnet's surface). For the intrinsic order of magnitude of magnetic fields, see: Orders of magnitude (magnetic moment). Note:
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