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At 11/14/10 08:39 PM, desert116 wrote: If the sun went out it would take us eight minutes to notice it.

fixed.

At 11/14/10 09:33 PM, 5FootLobster wrote: If i built a big tower on my house so i could see WaWa from the top, I wouldnt be looking into the future.

No, you'd be looking into the past (or at least observing a previous state of WaWa).

At 11/14/10 11:49 PM, Tinkco86 wrote: What you said is completely true. It applies to everything that is a matter of lightyears away.

Actually, it just plain applies to everything, though the exact amount of delay gets extremely small. You're looking at the past right now.

What will really make you think is if you had a stick that long between the two planets. You pushed it, would they feel it instantly?

I guess so, they just wouldn't see it.

At 11/15/10 06:58 AM, Dr-Worm wrote:

At 11/14/10 11:49 PM, Tinkco86 wrote: What will really make you think is if you had a stick that long between the two planets. You pushed it, would they feel it instantly?

I guess so, they just wouldn't see it.

They would see it because in order to push them the stick would need to be close to them and the "lag" would be minimal (as if I was poking you with a stick while sitting beside you). The stick can't move faster than light so they would see the stick coming.

Essentially it's just the same as poking someone with a much larger stick.

Not sure if I explained it well but I'm sure you get the gist.

I depends how far away if it was out of the solar system i belive thed see it as pangea

If you had a super powerful telescope, you would still only see the light that has reached us. Like you cant see the stars as they are now because that light has not reached us yet. To do that you would need to get physically closer to the stars or planets.

If there was a telescope looking at us 1000 light years away, it would see Earth as it was 1000 years ago as it would take 1000 years for light to reach it.

Wait, so if you were REALLY far away with a REALLY powerful telescope, you could watch events unfold in ancient history right?

Interesting theory, if we had a high enough detailed telescope, we could literally look into the past.

We would never be able to look at our past as we could never catch up with the light to intercept it with a telescope (we'd have to move faster than the speed of light to pass it out). If we managed to put a telescope 5 light years away 5 years from now it would only record from this point on for future generations to watch.

Yes we would see the pas

so if we could travel to planets that were 1000 to a million light years away there could be forms of life as we only saw the planet when it had no life on it.

Yeah, that's actually a resolved question and the answer is yes!

If we teleported a million lightyears away from earth we could view every historical event with our own eyes!

At 11/14/10 08:39 PM, desert116 wrote: If the sun went out it would take us eight seconds to notice it.

It would take five minutes actually. Now, if the Moon was destroyed, it would take about a second. In response to the first question, yeah, I think we would see the Earth and other planets the way they were regarding the long distance.

At 11/14/10 08:36 PM, Garage wrote: Now what if someone took an extremely powerful telescope and looked at a planet light years away? Would we see the planet as it was years in the past?

I may be wrong, but the reason why you can sse stuff, is beacause of the radiation they emit. So, looking at a planet with an extremely powerful telescope wouldn't increase the speed of the light it emited, therefore, you wouldn't see it in the "past", you would only see it more detailed.

I think...

At 11/14/10 11:49 PM, Tinkco86 wrote: What you said is completely true. It applies to everything that is a matter of lightyears away.

What will really make you think is if you had a stick that long between the two planets. You pushed it, would they feel it instantly?

A stick poking someone is clearly making contact with the person, which means the light-year long stick is right next to them at one point.
There's next to no lag when you see something in front of your nose, so as the stick gets nearer the person (to touch them), the light lag reduces.
So, basically, it would just be like being poked with a regular stick.

At 11/14/10 11:33 PM, Jedi-Master wrote:

At 11/14/10 11:31 PM, Warforger wrote:

At 11/14/10 08:39 PM, desert116 wrote: If the sun went out it would take us eight seconds to notice it.

Eight minutes.....

More like 8 minutes 20 seconds if you want to be even more precise.

If you want to be even MORE precise the earths distance varies so the time is not the same throughout the year.

At 11/15/10 02:06 PM, 56325 wrote: you wouldn't see it in the "past", you would only see it more detailed.

The point is that light, like everything else, has to travel. So if it takes a year to travel from A to B and you view it at point B you're actually seeing what happened at point A a year ago.