Tuesday, August 25, 2015

astronomy - Would it matter if the Earth rotated clockwise?


In the Futurama episode "That Darn Katz!" they save the world by rotating the Earth backwards saying it shouldn't matter (which direction Earth rotates). If Earth rotated clockwise and remained in it's current counter-clockwise orbit around the Sun, would it affect anything beyond the direction the constellations move across the sky?



Answer




Barring whatever fantastic energies would be required to stop the mass of the Earth from rotating and then changing the direction of the rotation, one of the major things I can see changing would be the expectations of weather patterns.


Part of what affects our weather is known as the Coriolis Effect.


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While there would certainly be effects from the change of the weather from the Coriolis effect how this would change the weather could only be guessed. It is certain to be transformative, and if it were an abrupt change, possibly catastrophic as deserts might move, food crops might be affected, and likely expected storm patterns would be changed.


Edit:


I neglected to think about the effect this would have on our structures which would collapse due to shearing action unless the stopping action included a planetary stasis field. Objects in motion tending to stay in motion and rotation speeds of over 1000 mph and the inconvenient theory of conservation of momentum. I forgot to think about our oceans as well, since the Coriolis effect would change them, too.


I also neglected to consider the molten core of the Earth (pesky spinning, geo-magnetic iron). Stopping the rotation of the molten core might cause the magnetic field of the Earth to collapse, allowing the world to be bathed in cosmic radiation (killing every living thing).


My assumption was when they stopped the rotation of the Earth and reset it, they would consider having a magnetic field a good thing and would be sure to stop reset the whole thing. Granted, the Earth of the year 3000 may have other advantages which might offset any changes from the altered rotation of the Earth. As a funny idea, it has potential, but the serious ramifications of such a feat boggle the imagination.


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