...and I journeyed with it 65 million light years away and pointed it back at the Earth, could I witness the cataclismic event that sparked the extinction of the dinosaurs? Could I watch the building of the pyramids? The crucifixion of Jesus? etc? I don't care how old I would be, or how I would breathe, or how I go to the bathroom, or any other physical or logistical issue.
2007-07-09 11:00:23 · 9 answers · asked by photonicboom 1 in Science & Mathematics ➔ Physics
Wow, i never looked at it that way.
Yes, you would be able to look back and see these events, since the light from the Earth is just getting there. Since we're neglecting any physical and logistical phenomena, I guess you would be able to hear the sounds if you set up a walkie-talkie a couple million lightyears closer to Earth, since the relative speed of sound is MUCH slower that that of light.
Actually, I'm not sure if your telescope even needs the infinite zoom speed, although it's cool to have.
Hope that helped.
2007-07-09 11:03:48 · answer #1 · answered by Anonymous · 0⤊ 1⤋
If you sat in a spot 1974 (2007 AD - 33 age of Jesus) light years away, you would be in the right time and place to witness Jesus' crucifixion.
Problems: our Sun would be easier to find than this dark rock called Earth reflecting only some of the sun's light, so light pollution would be a problem.
Also, the sky darkened just before Jesus died, so it was too overcaste to see that event.
There was a lot of steam, volcanic smoke to witness dinosaur related events, so same problems from further away to witness that.
Although the theory is sound, a Discovery Channel may be cheaper to arrange (and the bathrom is closer)
2007-07-09 11:51:47 · answer #2 · answered by wizebloke 7 · 0⤊ 0⤋
If you could see earth, with clarity, then yes, you could see all that. The reason being that the light reflected from earth at that moment would be just reaching that point 65 million light years away. Again, resolution is the limiting factor.
For example, we can see the Andromeda Galaxy as it looked 2.2 million years ago, because it is 2.2 million years away.
In theory, beings that are 65 million light years away and are bored are probably pointing their telescopes at earth going, "Wait, now, here comes the good part....BANG! HAHAHAHAHAHA!!!"
*Five minutes later.*
"This is boring. Let's go someplace and watch the first monkey try to walk!"
"Dude, it was a proto-ape."
"Whatever."
2007-07-09 11:04:08 · answer #3 · answered by Brian L 7 · 0⤊ 1⤋
No, the telescope could not have the resolution to see such details. A telescope trained on the moon can't see any debris left there by astronauts, for the same reason.
2007-07-13 03:36:38 · answer #4 · answered by johnandeileen2000 7 · 0⤊ 0⤋
in theory then yes you could... of course nothing can move faster than light so its impossible, but let's say that you are already out there with your telescope, you could look back and see prehistoric earth. depending on how far away you are you could see different time periods. of course you would only be able to see one side of earth at a time. and you wouldn't even be able to see all of that side since part of it would be in shadows.
interesting idea though.
2007-07-09 11:45:07 · answer #5 · answered by Tim C 5 · 0⤊ 0⤋
Einstein did no longer say that no longer something can return and forth on the cost of sunshine using fact it demands limitless mass. He pronounced that no longer something can return and forth on the cost of sunshine using fact c is a relentless for all observers, so as that it truly is impossible to capture as much as a mild ray. "limitless mass on the cost of sunshine" is an out of date interpretation of the equations and is a heavily deceptive concept. the reason you won't be able to return and forth at c is geometric, no longer dynamical. Mass/capability is the final ingredient you learn in specific relativity classification, long, long when you have found out that there are actually not any speeds greater effective than c.
2016-10-19 03:26:52 · answer #6 · answered by ? 4 · 0⤊ 0⤋
Yes, anything loking at earth from 2000 light years away could be seeing jesus or whatever. From that distance that would be the present. Kinda weird when I think about it.
2007-07-09 11:04:26 · answer #7 · answered by felduir 2 · 0⤊ 1⤋
i think you can because all the l the stars that we see in the sky right now are from 1000 of years ago so i think you can see what is hapend in earth a long time ago if you go to a very very far planet and look throw you telescope
2007-07-09 11:10:24 · answer #8 · answered by Anonymous · 0⤊ 1⤋
Sure, but you'd have to be positioned so no intervening galaxies got in your line of sight. You'd also want to observe the Earth from above or below the plane of the galaxy disc.
2007-07-09 11:05:04 · answer #9 · answered by Intrepyd 5 · 0⤊ 1⤋