On Saturday, September 13, 2014 3:25:36 PM UTC-7, Arc Michael wrote:
On Monday, September 8, 2014 2:49:44 PM UTC-7, Double-A wrote:

In 400 BC the philosopher Plato estimated the circumference of the Earth to be 40,000 miles. In 250 BC Archimedes estimated it to be 30,000 miles.. Today it is said to be 24,901 miles around. Has the Earth been getting smaller? If the mass has stayed about the same, but shrinking size has brought us closer to the center of mass, that would explain an increase in the pull of gravity over the eons. That is how dinosaurs 70 million years ago could have grown so large! The cooling of the Earth might have made it inclined to shrink. It makes a lot of sense.







Double-A



yeah, dynos ate a lot of it --mostly shrubbish. It was also the relative mean heat of the Dyno period that produces vegan large vegisourus, like Trannysourus Lux or MassaDon.



also precession ( astronomy for slow shifting of back ground stars to our relative fixed vernal point over long periods of time) has been speeding up and so a smaller Earth, as you describe could be the size=rotation=length of sidereal year which would be a new theory.


Shrinking would tend to speed up the Earth's rotation. But the drag of the Moon tends to slow it down.

Double-A