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Non Gaming Discussions => Off-Topic => Topic started by: theomen on April 23, 2002, 08:29:48 PM
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If the sun were to disappear tomarrow, would we see darkness before we were broken loose of the gravity of the sun? The sun is 93 million miles from earth, and the speed of light is 186,282.3976 miles per second. So it takes roughly 8 minutes for light to reach us from the sun.
I have the answer, but would like to see what people have to say about the subject.
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Originally posted by theomen
I have the answer, but would like to see what people have to say about the subject.
umm.... what subject?
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I\'ll rephrase, "I want to see what people think would happen if said event happend(would we break loose of the suns gravity, before seeing the sky go dark)."
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if it just dissapeared, like magic, poof. . . it\'s gone? Uh, yeah we\'d see it go dark. And just drift I guess. We\'d continue our present path for a little bit. I guess it then depends on the distance of us to Jupiter or something, and from what direction.
I dunno. Give me some numbers to crunch on.
Update, we\'d probably start moving outward pretty fast, away from where the sun was, but we\'d see it get dark.
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Yeah, I think so since it takes like, 3 minuites for light to get from the surface of the sun to earth. Once the sun is gone, poof, dissapeared, there\'s no more source for the gravity... so we\'d just float away. Funny thing tho.. the light that we see today was generated well over a million years ago, but because the sun is so dence, it hasn\'t made it\'s way to the surface until just 3 minuites ago. Is that right? Or is it 10million - 100million years ago??
In the end, would it even matter?
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here\'s something to help in the discusion
(https://psx5central.com/community/proxy.php?request=http%3A%2F%2Fwww.pics4fun.com%2Fgalleries%2Fzeebarf%2Fgravity.jpg&hash=cfc47e5d588637bf656b58c33687a804eddfcae2)
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Originally posted by theomen
If the sun were to disappear tomarrow, would we see darkness before we were broken loose of the gravity of the sun? The sun is 93 million miles from earth, and the speed of light is 186,282.3976 miles per second. So it takes roughly 8 minutes for light to reach us from the sun.
I have the answer, but would like to see what people have to say about the subject.
First of all, I don\'t see how anyone could know the answer to what would happen, since such a situation would be impossible. So any answer would just be in theory, right? Anyway, I think we\'d be released from the gravitational pull first, but we wouldn\'t realize it until after we stop seeing light from the sun
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shockwaves answer sounds right, but would be applicable if the sun suddenly dissapeared as stated in the question where as if the sun were to slowly move away then its a totally different story.
man this reminds me of the physics i had in school:crap:
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Ummmm... . . . .
I like beer.
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the commonly accepted theory is that due to the speed of gravity being at least 2x10^10 c, and the speed of light being c. (Originally Einstein said nothing could be fastet than light, but then later said that gravity is the mergeing of space-time and matter-energy, allowing it to exceed c.) that if the sun were to disapear we would instantly be hurled into space at 67,000 miles per hour. And we would see the sky go dark, but after we had been freed of gravity.
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Hey, I was right :)
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Originally posted by shockwaves
Hey, I was right :)
you get a cookie!
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YAY! What kind of cookie? And how big a cookie? :)
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Where\'s mine?
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Originally posted by Troglodyte
Where\'s mine?
Well I can only bake so fast, damn!
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You guys are kidding me.
The "speed of gravity" is the same as light. The earth would be flung into the depths of space at the same moment we lose light. The actual position of ejection from our orbit would be tangential to our current position at roughly 67,000 mph and from there the earth would become a VERY VERY large asteroid, unless we\'re lucky enough to be caught into the orbit of something else a few lightyears down the line. We wouldn\'t drift in any circular manner for any amount of time after we lose gravity.
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^^^Its been a long time since I took Physics(about a year?) and I don\'t think Gravity has a speed. It is a force that is determined by many different factors ie. weight of object/Pull/ Friction/ etc.
I could be wrong; but I\'m probably not.
Wait, now that I think about it. Why the hell would gravity itself have a speed? Get out of here with that crazy talk.
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Originally posted by LUKE
umm.... what subject?
its ok luke ill explain it for you !
...if the big shinny glowing thing in the sky that we see during the day goes bye bye... will everything be as dark as a black cat warring shades in a coal mine ....before we float up to the sky like a frog with a @rse full of helium.
;)
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Oh it does indeed sound insane, and was debated for a long time before it had been all but proven that gravity travels at the speed of light.
I believe gravity has some wave properties which led theorists to that conclusion.
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Originally posted by mostafa3k
__________________
Microsoft loves you.
LOL @ your Sig
:laughing:
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Please elaborate. I am having difficulty believing Gravity itself has a speed.
Do you have any links so I can read up on this law(It is proven right?)? Thanks in advance.
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Originally posted by mostafa3k
...unless we\'re lucky enough to be caught into the orbit of something else a few lightyears down the line...
I got a bit of a laugh from this statement. Don’t know why, I just did.
Also, has anybody taken into consideration that without the sun we might get a bit cold? Just wondering.:D