# COMMUNITY : HELP : AUTHORS

## Updated: I Need Math Help: How do I find the info needed and what formula do I use to figure this fluid physics and astronomy question with?

### Finally, I have been given the source of the "info" the fellow talking to me, was drawing from:

It can be found here:   Hydroplate 'theory'

Ok, here is my problem.   I have been presented with, what at first sounds like a totally ludicrous concept, but in order to prove or disprove it, I need to have some math backing that I don't have in my head (nor in my experience).

I need the approximate mass of the asteroids in the belt.   And also I need the distance to the belt.
I will also need to figure how much pressure it would take to force a  column of water skyward at escape velocity, equal to that mass.

And if there is a way to give a simple explanation for the math, that would be apreciated also :-)

?

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Umm, did you need an answer real quick to save the world?
Um, no quite the opposite.   It has been posited that the asteroid belt is actually "spew" from a cracked earth, that slammed back together, and sent tremendous amounts of water skyward with such force that it created the asteroid belt.    Besides how far fetched this sounds, I wanted to see if there was a simple way to show this just can not be.

7 years ago
But the asteroids are not ice so you have to take into account something else being propelled into space besides water.
IIRC they are mostly ice, but I would have to look into that too later.

7 years ago
The asteroid belt is a mix of rock and iron - if there is any water, it is only as traces of frost in deep craters.

The closest orbital ice is found in the rings and moons of gas giants.

Other than that, you're looking at comets, which are mainly found in the Oort Cloud, wa-a-a-a-y too far away to be "splashed" water.
Goodhart (author)  Kiteman7 years ago
also, I would still like to understand whether or not it is possible for a volcanic / tectonic incident to actually project water to escape velocity....seems a bit over the top to me.

7 years ago
I don't know numbers, but large impacts (mass-extinction-sized) can certainly throw large ejecta (including masses of water if the impact is at sea) into sub-orbital trajectories, and we find small meteorites on Earth from Mars.

I also heard that super-volcanoes (like the one lurking under Yellowstone) can throw stuff to the top of the atmosphere.
So, I guess the answer would be...

Yes, terrestrial events could throw water into space, but...

No, any water that happened to would not end up as comets.  It would (quickly or slowly) end up back on Earth.

The comets aren't from any planet.  They're older than (most of?) the planets, debris from the original dust-cloud that spawned our Solar System.  If anything, the planets are from the comets...
7 years ago
Not sure, buuut, would it send up millions/billions of droplets of water that wouldn't be that big (comet sized) when they left our atmosphere? Or would the water stay together in places to make large lumps of ice when it reaches orbit?
Goodhart (author)  Kryptonite7 years ago
The biggest problem I thought it had, was that the "tube effect" Kelsey mentions, is the "crust of the earth", and so once the water leaves the end of the "tube", it essentially has no "pressure" behind it.  Thus the needed force to propel it past orbit, would have to be supplied before it left the crust....and would need to be extremely large.....

7 years ago
The only thing that I could thing possibly big enough could be two planets colliding, so, it's possible to get enough speed up, but it would probably end up as spray.
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