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A question of best fit: the expanding Earth
The other thing that you’ve done – and you’re still a bit of a rebel in this regard – is to propose the question of the expanding Earth.
No longer a rebel – they now believe it! At least, they all will eventually. It takes some people a while to catch up.
What made you think of an expanding Earth as the explanation for what you saw? Was it purely that you were fitting the continents together and it didn’t fit?
Well, I put the continents together and there was a big hole. I had to have that or more than half the world as ocean. It seemed to be a better solution, because there was a great area where I believed the edges of those things belonged to each other, across the Pacific. And the north Pacific had rims which belonged to each other.
Originally posted by squiz
Just a thought, gravity would've been weaker, could that explain the size of some dinosaurs? and why land animals today cannot grow to that size?
Originally posted by Tuning Spork
Actually, gravity would have much much stronger. Fitting the mass of the earth into a sphere with 25% of it's current radius would raise the surface gravity to 16 times it's current force.
This is assuming that the earth is not growing in mass as it supposedly expands. A safe assumption, by the way, since the only way for the earth to expand as hypothesised would be to a lot of mass through meteor and comet collisions. A WHOLE lot of meteor and comet collisions.
Originally posted by squiz
Mass is not the same as size, mass is simply how much matter is in an object, you can have diferent sized objects with the same amount of mass.
Changing the size of an object without changing the mass should have no effect on the gravitational force.
Actually the earth is growing in mass, approximately 10 to the 8th power kilograms every day due to debri from space.
hmm...65 million years plus, that's a lot of mass.
"Not only is it obvious that a daily influx of extraterrestrial meteorites and dust amounting to ~275-50,000 TONS PER DAY (NASA)..."
Originally posted by Tuning Spork
Au contraire, it does, at it's surface. Remember the inverse square law of gravity. When you shrink a planet to 1/2 it's current size, that reduction in distance from the center of mass will result in a quadrupling of it's surface gravity.
The Earth is increasing in size and mass by daily accretion of extraterrestrial meteorites and meteor dust--additional weight that is gravitationally focused on the planet's exact center, thereby generating compressive heat and thermal expansion of the core.
Originally posted by squiz
...could the thermal expansion account for the difference?
The extra matter combined with the core expansion could account for the size difference?
Originally posted by Tuning Spork[/i
Adding this additional debris for 65 million years would add about 3.65 x 10^17 kg, or, roughly, 1/22,000,000th of the earth's current mass. This can't account for the increase in volume.
In order to account for the nearly 75% of the earth's surface that comprises the "newly formed" ocean basins, the earth's surface must quadruple, which means that it's radius and diameter have nearly doubled. This will increase the volume of the earth will increase about eightfold. (I'm too tired to do anymore exact calculations.)
Anyway, you can't get 8 times the volume by adding 1/22,000,000 the mass.
Originally posted by squiz
...the idea of having a huge continent (Pangea) existing on on side of the planet with the rest of it covered by ocean is as I said a bit silly.
Do we assume the earth formed at it's current size? Thats highly unlikely.
It's still forming and evolving like the rest of the universe.
Originally posted by Byrd
Discussed a number of times here.
Basically, Adams is a wonderful cartoonist but doesn't even know basic high school science.
Originally posted by Tuning Spork
If, as the films supposes, that India colliding with Asia did not create the Himalayas, then what did? Were they already there?
An expanding earth would suggest that it'd only be more flattened. Can mountains be raised by a bloating planet?
Because, however, the proponents of this theory were unable to explain where the mass that causes Earth Growth comes from, it was dismissed for the theory that subduction caused the Earth to remain at a fixed size.
Originally posted by JackRuby
Originally posted by Byrd
Discussed a number of times here.
Basically, Adams is a wonderful cartoonist but doesn't even know basic high school science.
Wait a minute, your calling the guy incompetent because he doesn't buy into the bunk that is taught in high school science class?
Originally posted by Astyanax
There's a big valve at the South Pole. Angels are blowing into it.