Timeline for Can the Dzhanibekov Effect celestial bodies, like Earth’s crust and/or core causing the flipping of magnetic poles?
Current License: CC BY-SA 4.0
6 events
when toggle format | what | by | license | comment | |
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Jun 18 at 15:06 | comment | added | Wookie | Yes, that is part of the abstract and the paper more substantially deals with massive incoming bolides applying the additional force necessary for effectual ocean water displacement as referred to in the first paragraph of the answer. | |
Jun 18 at 12:16 | comment | added | Digcoal | From the article you posted: “Changes in the moment of inertia of the earth, brought about by the redistribution of ocean water from the tropics to ice at high latitudes, couple energy from the spin of the earth into convection in the liquid core.” so we are back to the Dzhanibekov Effect possibly being back in play due to the Earth’s oceans creating an off center moment if inertia. | |
Mar 24 at 21:26 | comment | added | Wookie | Consider that the Dzanibekov Effect was first noticeably observed in a wingnut: the object possesses a hollow core, the centre of gravity being significantly shifted along the axis of rotation in comparison to Earth which has a spheroidal solid iron core. The dynamics between the crust-mantle (taking them as one here) molten outer core and solid inner core are complex but there are other factors not mentioned in the answer making the Earth's rotation stable: 1) speed of rotation 2) gravitational stabilisation by the Sun and Moon. We're nowhere near tumbling in space like a wingnut is. | |
Mar 24 at 19:03 | comment | added | Digcoal | I’m aware of pole flipping and its effects. I was more interested in what would cause it. Since the core seems to be less spherical, I wondered if the Dzhanibekov Effect would be more possible with the core. | |
Mar 23 at 10:52 | history | edited | Wookie | CC BY-SA 4.0 |
I explained that radiation would enter through holes in the ozone layer.
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Mar 22 at 21:05 | history | answered | Wookie | CC BY-SA 4.0 |