If the Earth rotated at a
speed that matched its gravitational constant, it would be spinning
at 17,000 mph, which is 17 times faster than its current speed. If it
rotated any faster, we would see reverse rain at the equator, with
water falling up into the sky. All of the water at the Earth's
equator would be pooled in the atmosphere, and humans would have to
migrate to the poles to find enough water to survive. If the Earth
spun even faster still, the very shape of the Earth would eventually
change, with the poles flattening and the center of the Earth
bulging outward. This would also cause massive earthquakes as the
tectonic plates shifted around. Life on Earth would likely come to an
end. Did you know that the Earth's rotational speed is actually
changing? Should we worry?
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