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A bad question, as it has been doing that literally (rotationally) since before life started. This power is busy generating the magnetosphere. We would not be e
by 1970-01-01 2y ago
A bad question, as it has been doing that literally (rotationally) since before life started. This power is busy generating the magnetosphere. We would not be enjoying our nice oxygen atmosphere and would be as dead as Mars if Earth's rotation wasn't also powering a dynamo.
- mr_mitm 2y agoIt doesn't take any energy to maintain a static magnetic field though.
- deleted 2y ago[deleted]
- jagger27 2y agoEarth's magnetic field isn't static, though.
- mr_mitm 2y agoNegligibly so. The Sun delivers more energy to Earth in about 5 seconds than the magnetic field loses in 1,000 years.
- timewizard 2y agoThe magnetic field is coherent. The energy from the Sun is not.
- pfdietz 2y agoThe currents that produce the magnetic field are flowing in liquid metal with nonzero resistivity.
- fallingknife 2y agoEarth's rotation is also generating the power that is moving the Moon's orbit slowly away from Earth. There will be no more total solar eclipses in 600 million years because of this.