It is well known that the rotation of planet Earth is gradually slowing. ... In the past, when the Earth was younger and spinning faster, the stronger angular momentum caused the Earth to assume a more pronounced oblate spheroid shape much greater than the twenty-seven miles it is today. ... They have become more subdued,
novan.com/earth.htm
Jupiter - Wikipedia, the free encyclopedia
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Jupiter is the fifth planet from the Sun and the largest planet within the Solar System. It is a gas giant with a mass slightly less than one-thousandth that of the Sun but is two and a half times th...
en.wikipedia.org/wiki/Jupiter
Earth - Wikipedia, the free encyclopedia
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Earth is the third planet from the Sun. It is the fifth largest of the eight planets in the solar system, and the largest of the terrestrial planets (non-gas planets) in the Solar System in terms of ...
en.wikipedia.org/wiki/Earth
and when, after the usual interval of years, like a plague, the flood from heaven comes sweeping down afresh upon your people, it leaves none of you but the unlettered and the uncultured, so that you become young as ever, ... It is said that this oblate spheroid shape of the planet was first discovered by Sir Isaac Newton.
brainmind.com/2012.html
An egg shaped planet couldn't be more than 6-700 km in diameter before the irregularities would be smoothed out by plastic flow of the crust and mantle; a rapidly rotating body would be an oblate spheroid, ... though if it had an atmosphere, it would have been less likely for it to have become a binary planet as it is now.
www.sciforums.com/Egg-Shaped-Planet-t-22262.html www.sciforums.com/Egg-Shaped-Planet-t-22262.html
Subbarao & Sharma (1975) considered the same problem with one of the primaries as an oblate spheroid and its equatorial plane coinciding with the plane of motion, ... The lack of sphericity, or the oblateness, of the planet causes large perturbations from a two-body orbit. The motions of artificial Earth satellites are...
www.iop.org/EJ/article/1538-3881/131/3/1880/204593.text... www.iop.org/EJ/article/1538-3881/131/3/1880/204593.text.html
Answer: D. Uranus – Astronomers believe a collision with another planet-sized body may have caused Uranus to become tilted on its side. ... It is actually an oblate spheroid – meaning the diameter between the two poles is slightly shorter than the equatorial diameter. Earth is somewhat flattened at the poles,
www.farmersalmanac.com/astronomy/a/planets-quiz-did-you... www.farmersalmanac.com/astronomy/a/planets-quiz-did-you-know
The rapid rotation along with the effect of gravity causes these planets to actually take on an elongated shape so their true shape is known as an oblate spheroid. ... What causes this large difference? The first thing that was thought to be the driving force was radioactively decaying material inside the planet.
www.solar.unt.edu/Chapter8.htm
The planet is a few millimeters smaller than had been assumed. ... Rather, our planet's rotation causes the equatorial region to bulge, making it an oblate spheroid that resembles a vertically squashed beach ball. ... The Future of Evolution: What Will We Become?
www.livescience.com/strangenews/070705_earth_smaller.ht... www.livescience.com/strangenews/070705_earth_smaller.html
We can’t define what a planet is? I disagree, because we have such a fluid and flexible language. Definitions become more specific as we pare down what’s being described, with a combination of nouns and adjectives.
blogs.discovermagazine.com/badastronomy/2008/07/02/the-... blogs.discovermagazine.com/badastronomy/2008/07/02/the-great-planet-debate/