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Science and Technology "Somewhere, something incredible is waiting to be known." - Carl Sagan.

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Old October 8 2009, 02:45 PM   #1
Butters
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Earth Moon Collision?

If the Earth and Moon collided at a point, antipodal to your location. Would you experience any gravitational effects of the increased mass resulting from collision before the impact ended you?
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Old October 8 2009, 02:49 PM   #2
Deckerd
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Re: Earth Moon Collision?

Since the moon is a chunk of the Earth which is now being pushed away from it, the chances are more likely that something else really big hits us.
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Old October 8 2009, 03:08 PM   #3
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Re: Earth Moon Collision?

Deckerd wrote: View Post
Since the moon is a chunk of the Earth which is now being pushed away from it, the chances are more likely that something else really big hits us.
Its a hypothetical question abouth nature of gravity and our experience of it.

The moon hitting us is extremely unlikely, but if it did, what would we feel first? Heavier because of the Earth's sudden increase in mass, or death from the resulting shockwave demolishing its way around the globe?
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Old October 8 2009, 03:13 PM   #4
SilentP
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Re: Earth Moon Collision?

Well, in your scenario, we'd start feeling heavier before the moon even hits the Earth, as the Moon gets closer to the surface, it's own gravitational field would start having a greater effect in any case, since it's now closer to you.
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Old October 8 2009, 03:17 PM   #5
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Re: Earth Moon Collision?

Chances are we'd all be dead long before the impact.
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Old October 8 2009, 03:50 PM   #6
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Re: Earth Moon Collision?

I'd imagine the tidal forces caused by it's proximity would end life on Earth as we know it long before the Moon actually hit us. Planet bulging, continents cracking, widespread volcanic activity, that sort of thing.
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Old October 9 2009, 01:05 AM   #7
Brent
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Re: Earth Moon Collision?

What if you were in space, like on the space station?
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Old October 9 2009, 01:55 AM   #8
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Re: Earth Moon Collision?

FrighteningSVT wrote: View Post
I'd imagine the tidal forces caused by it's proximity would end life on Earth as we know it long before the Moon actually hit us. Planet bulging, continents cracking, widespread volcanic activity, that sort of thing.
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Old October 9 2009, 02:11 AM   #9
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Re: Earth Moon Collision?

Brent wrote: View Post
What if you were in space, like on the space station?
The change in gravity would knock the ISS out of orbit.
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Old October 9 2009, 05:13 AM   #10
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Re: Earth Moon Collision?

I thought the ISS had a defector dish.
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Old October 9 2009, 05:44 AM   #11
Mike Farley
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Re: Earth Moon Collision?

PurpleBuddha wrote: View Post
I thought the ISS had a defector dish.
Well then, all they have to do is alter the gravitational constant of the universe and they can push the moon back where it belongs.
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Old October 9 2009, 06:45 AM   #12
Hanukkah Solo
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Re: Earth Moon Collision?

Mike Farley wrote: View Post
PurpleBuddha wrote: View Post
I thought the ISS had a defector dish.
Well then, all they have to do is alter the gravitational constant of the universe and they can push the moon back where it belongs.
Wouldn't they have to reverse the polarity before they could do that?
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Old October 9 2009, 07:19 AM   #13
Broccoli
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Re: Earth Moon Collision?

Skystalker wrote: View Post
Mike Farley wrote: View Post
PurpleBuddha wrote: View Post
I thought the ISS had a defector dish.
Well then, all they have to do is alter the gravitational constant of the universe and they can push the moon back where it belongs.
Wouldn't they have to reverse the polarity before they could do that?
Only after they put their weapons at maximum.
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Old October 9 2009, 07:51 AM   #14
Warp Rider
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Re: Earth Moon Collision?

"Shields! SHIELDS!" lol
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Old October 9 2009, 08:02 AM   #15
Brent
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Re: Earth Moon Collision?

PurpleBuddha wrote: View Post
I thought the ISS had a defector dish.
who's defecting ? the station itself? is it going to live with another planet
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