Quote:
Originally Posted by toothdust
But now you are making a large assumption here by claiming that this process has been going on for the entire life of the Earth.
Also, according to EE Theory, expansion has only been occurring for the last 200my, at least evidenced by ocean crustal age. This amounts to (at claimed rate)
Assumed mass gain from TS numbers -26,280,000,000,000,000,000
Mass of Earth (present, tons) -6,580,000,000,000,000,000,000
This is less than 1% gain in mass @ 2 tons every 8 minutes for 200my.
The Sun ejects 6.7 billion tons of mass every hour ( Wiki). If, lets say, even .0001% of this mass encounters Earth, that is 670,000 tons of charged particles impacting Earths magnetosphere every hour.
Now, big assumption, but IF there is some kind of new physics allowing even some of those charged particles to accrete at Earth's core, there would be your hypothetical mechanism.
Who knows, maybe the LHC will reveal something supportive. About as likely as finding dark matter.
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That suggests another back-of-the-envelope calculation:
Let's imagine that every single bit of that 6.7 billion tons/hr of stuff is confined to the ecliptic plane, but is spread uniformly in all directions on that plane. That would represent a major concentration of stuff compared to what actually happens.
The circumference of the Earth's orbit around the Sun is about 940,000,000 km. Its diameter at the equator is 12,756 km. So, every hour, in this extreme, contrived model, 12,756 / 940,000,000 x 6,700,000,000 = 90,920 tons of stuff from the Sun arrive at Earth.
In a year that's 365.25 x 24 x 90920 = 797,008,450 tons, or ~8x10
8 tons
This number is 8x10
8tons / 6.5745x10
10tonnes x 0.91 tonne/ton = 0.011 or 1.1% of the earlier calculation that used an arbitrarily large 1 million tonnes every 8 minutes and could only account for 5.1% of the Earth's current mass in 4.6 billion years.
Are you following this
Total Science? While I may suffer embarrassment if my calculations are wrong, please feel free to correct me.
And, I'll second
captain swoop's comment. Having watched that video linked in the OP, I suspect that
Total Science believes that Ganymede has grown in volume - somehow - by ~30% in the "recent" (define?) past, and this accounts for the appearance of the smoother areas of its surface compared to the older, darker, and more cratered area.