If the sun were to suddenly disappear...

[BD2003]

Originally posted by: sponge008

Originally posted by: So

Originally posted by: KarmaPolice

Originally posted by: So

Originally posted by: KarmaPolice
Does it matter...we would all be dead. 8mins of light and the nothing..and then cold..and then death.

It depends on how fast the cold sets in....if it takes a few months, we might have a chance to burrow in and use nuclar power to survive.

The point of that? Ok lets say we can do this. Thats not going to last forever. We cant go outside to find more...we will run out of power eventually and then die. Nevermind the fact that we would run out of food

Well, assuming we have energy, food isn't a problem, and we have enough nuclear fuel to last at least a few hundred million humans for a good long while (the third world would probalby not have a chance anyway).

As for getting more uranium, we'd have to mount a serious space program to go and grab uranium from the jovian system (jupiter and her moons) and the other planets. If the sun simply became a black hole, this would be feasible. If the sun disappeared, then we'd need a bit of luck: it'd have to happen when jupiter was moving fairly parallel to us, otherwise it'd get too far away too fast for us to have a chance.

Edit: that said, we'd pretty much have to use it as a stopgap on the road to building a couple of colony ships and heading for another star.

If the sun became a black hole, the Earth would be sucked in, no?

Pretty sure it wouldnt. Its the same mass, only in one point, but it basically would have the same gravitational pull as the sun, so we'd prob just orbit around it.

But our sun is nowhere big enough to ever be a black hole - if it was, we would have been sucked into the sun a long time ago, hell, the earth wouldnt have even formed where it did.

 

[JDrake]

The light will last for 8 minutes (the time it takes for sunlight to reach earth)

 

[So]

Originally posted by: sponge008

Originally posted by: So

Originally posted by: KarmaPolice

Originally posted by: So

Originally posted by: KarmaPolice
Does it matter...we would all be dead. 8mins of light and the nothing..and then cold..and then death.

It depends on how fast the cold sets in....if it takes a few months, we might have a chance to burrow in and use nuclar power to survive.

The point of that? Ok lets say we can do this. Thats not going to last forever. We cant go outside to find more...we will run out of power eventually and then die. Nevermind the fact that we would run out of food

Well, assuming we have energy, food isn't a problem, and we have enough nuclear fuel to last at least a few hundred million humans for a good long while (the third world would probalby not have a chance anyway).

As for getting more uranium, we'd have to mount a serious space program to go and grab uranium from the jovian system (jupiter and her moons) and the other planets. If the sun simply became a black hole, this would be feasible. If the sun disappeared, then we'd need a bit of luck: it'd have to happen when jupiter was moving fairly parallel to us, otherwise it'd get too far away too fast for us to have a chance.

Edit: that said, we'd pretty much have to use it as a stopgap on the road to building a couple of colony ships and heading for another star.

If the sun became a black hole, the Earth would be sucked in, no?

No. If the sun simply converted itself into a black hole, no mass is lost. As a result we'd continue to orbit it, just like normal, except we'd freeze to death because of the lack of sunlight.

Essentially, a black hole has an 'event horizon' that is relatively close to where the star itself was, anything further out than that point would orbit it normally just like any other body of the same mass. Also worth noting: a black hole is a point of infinite density, not infinite mass. Thus, you can have a black hole made of a few atoms, they'd just not have any pull on anything (and thanks to stephen hawking, we're pretty sure they'd wink out of existence in a puff of radiation pretty quickly -- but that's another cup of tea entirely).

 

[So]

Originally posted by: BD2003
Pretty sure it wouldnt. Its the same mass, only in one point, but it basically would have the same gravitational pull as the sun, so we'd prob just orbit around it.

But our sun is nowhere big enough to ever be a black hole - if it was, we would have been sucked into the sun a long time ago, hell, the earth wouldnt have even formed where it did.

Not quite correct. AFAIK, Black holes DO come from once active stars (although ones much bigger than our own friendly lil' Sol) -- when the stars burn out (of their nuclear fuel) they no longer have the outward force from the burning reaction to balance their gravity and they collapse into black holes.

 

[PowerMacG5]

Originally posted by: quasarsky
i guess we'd have to evacuate through the stargate

But the point of origin will change, so we won't know the seventh symbol anymore :Q.

 

[So]

Originally posted by: PowerMacG5

Originally posted by: quasarsky
i guess we'd have to evacuate through the stargate

But the point of origin will change, so we won't know the seventh symbol anymore :Q.

That's what the supercomputer is for. Get hubble to give us a starfix and *bam* adjustment made.

 

[BD2003]

Originally posted by: So

Originally posted by: BD2003
Pretty sure it wouldnt. Its the same mass, only in one point, but it basically would have the same gravitational pull as the sun, so we'd prob just orbit around it.

But our sun is nowhere big enough to ever be a black hole - if it was, we would have been sucked into the sun a long time ago, hell, the earth wouldnt have even formed where it did.

Not quite correct. AFAIK, Black holes DO come from once active stars (although ones much bigger than our own friendly lil' Sol) -- when the stars burn out (of their nuclear fuel) they no longer have the outward force from the burning reaction to balance their gravity and they collapse into black holes.

What does that have to do with what I said?

 

[rtb21]

I wonder if we would run out of oxygen due to photosynthesis stopping before we got too cold...

I reckon the cold would win by a long way.

 

[BD2003]

Originally posted by: rtb21
I wonder if we would run out of oxygen due to photosynthesis stopping before we got too cold...

I reckon the cold would win by a long way.

Ya....it would get very, very cold, very very fast. Prob a few hours max.

 

[zanieladie]

Wow...glad I won't be around to see it happen.

 

[MrDudeMan]

Originally posted by: So

Originally posted by: BD2003
Pretty sure it wouldnt. Its the same mass, only in one point, but it basically would have the same gravitational pull as the sun, so we'd prob just orbit around it.

But our sun is nowhere big enough to ever be a black hole - if it was, we would have been sucked into the sun a long time ago, hell, the earth wouldnt have even formed where it did.

Not quite correct. AFAIK, Black holes DO come from once active stars (although ones much bigger than our own friendly lil' Sol) -- when the stars burn out (of their nuclear fuel) they no longer have the outward force from the burning reaction to balance their gravity and they collapse into black holes.

yes, black holes come from once active stars, but that isnt what he was getting at. in order for a black hole to form, the star has to have a critical mass. the sun does not have the critical mass, so it will not turn into a black hole.

also, if the sun instantly turned into a black hole, we would not notice any difference except for the lack of light. the center of several galaxies, if not most, contain a super massive black hole. mass is the key here, not how much it "sucks" because that really isnt a thing...

lastly, gravity most certainly does not propogate FTL. assuming the particle theorized as the graviton is proven to exist, it would have to disobey relativity in order to be a tangible particle. however, this does have an interesting side note. gravitons could potentially exist as virtual particles, where existing in a time with little enough energy to be less than h bar over 2, they would not be detectable and for all intents and purposes be "fake." virtual photons come to mind, but they most certainly must exist for the interactions between protons, neutrons, electrons, etc. to transpire. anyway, enough rambling.

 

[sponge008]

Originally posted by: BD2003

Originally posted by: sponge008

Originally posted by: So

Originally posted by: KarmaPolice

Originally posted by: So

Originally posted by: KarmaPolice
Does it matter...we would all be dead. 8mins of light and the nothing..and then cold..and then death.

It depends on how fast the cold sets in....if it takes a few months, we might have a chance to burrow in and use nuclar power to survive.

The point of that? Ok lets say we can do this. Thats not going to last forever. We cant go outside to find more...we will run out of power eventually and then die. Nevermind the fact that we would run out of food

Well, assuming we have energy, food isn't a problem, and we have enough nuclear fuel to last at least a few hundred million humans for a good long while (the third world would probalby not have a chance anyway).

As for getting more uranium, we'd have to mount a serious space program to go and grab uranium from the jovian system (jupiter and her moons) and the other planets. If the sun simply became a black hole, this would be feasible. If the sun disappeared, then we'd need a bit of luck: it'd have to happen when jupiter was moving fairly parallel to us, otherwise it'd get too far away too fast for us to have a chance.

Edit: that said, we'd pretty much have to use it as a stopgap on the road to building a couple of colony ships and heading for another star.

If the sun became a black hole, the Earth would be sucked in, no?

Pretty sure it wouldnt. Its the same mass, only in one point, but it basically would have the same gravitational pull as the sun, so we'd prob just orbit around it.

But our sun is nowhere big enough to ever be a black hole - if it was, we would have been sucked into the sun a long time ago, hell, the earth wouldnt have even formed where it did.

But, the Sun would have to magically acquire mass to even become a black hole, no?

 

[BD2003]

Originally posted by: sponge008

Originally posted by: BD2003

Originally posted by: sponge008

Originally posted by: So

Originally posted by: KarmaPolice

Originally posted by: So

Originally posted by: KarmaPolice
Does it matter...we would all be dead. 8mins of light and the nothing..and then cold..and then death.

It depends on how fast the cold sets in....if it takes a few months, we might have a chance to burrow in and use nuclar power to survive.

The point of that? Ok lets say we can do this. Thats not going to last forever. We cant go outside to find more...we will run out of power eventually and then die. Nevermind the fact that we would run out of food

Well, assuming we have energy, food isn't a problem, and we have enough nuclear fuel to last at least a few hundred million humans for a good long while (the third world would probalby not have a chance anyway).

As for getting more uranium, we'd have to mount a serious space program to go and grab uranium from the jovian system (jupiter and her moons) and the other planets. If the sun simply became a black hole, this would be feasible. If the sun disappeared, then we'd need a bit of luck: it'd have to happen when jupiter was moving fairly parallel to us, otherwise it'd get too far away too fast for us to have a chance.

Edit: that said, we'd pretty much have to use it as a stopgap on the road to building a couple of colony ships and heading for another star.

If the sun became a black hole, the Earth would be sucked in, no?

Pretty sure it wouldnt. Its the same mass, only in one point, but it basically would have the same gravitational pull as the sun, so we'd prob just orbit around it.

But our sun is nowhere big enough to ever be a black hole - if it was, we would have been sucked into the sun a long time ago, hell, the earth wouldnt have even formed where it did.

But, the Sun would have to magically acquire mass to even become a black hole, no?

Which is why its an absurd question. I was only referring to the hypothetical concept of a singularity with the mass of one sol.

 

[Deleted member 4644]

I would find some women to mate with!