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It's an interesting idea, but hardly extraordinary.

If you could theoretically do it, you'd see things as they existed a hundred years ago. Of course, that's no different than looking at old newspapers on the internet or an archaeologist unearthing artifacts of time long past.

The difference, again in theory, is that you might be able to review actual events. If your hypothetical instrument were exactly the right distance away, for instance, it might be able to home in on the 1908 Tunguska Event in Siberia and see what caused the explosion.

Ah, but do not forget the practical difficulties! First, although in theory you would be witnessing past events, you will absolutely have no way to influence them. Your instrument will be metaphysically incapable, say, of killing your grandfather before he met your grandmother.

Because of the Uncertainty Principle, I think (perhaps a physicist will correct me) you would find a limit to how much detail can be observed from 100 light years away, even in principle. Even if you could build a telescope of unlimited size, my guess is that you'd find too much graininess to be able to see fine detail from that distance. And, of course, every bit of dust and space crud over 100 light years would tend to obstruct parts of the picture.

Also, do not forget the absolute theoretical limitation, that you have no way to get your message to the 100-light-years-away telescope building firm to start construction and to focus their mighty instrument on the earth 100 years in the past. By the time the message gets to them, a hundred years will have passed and they'll no longer be able to look back to 1908 from a hundred light years away.

And if they do ever get around to finishing the job (and assuming that you're not long dead, which you would be, and assuming that you've devised a method of effecting payment for what is sure to be a very costly project) it will take at least 100 more years to get the info back to you.

If all you were interested in is seeing the Earth in the past than yes, in principle you could do it that way. You probably wouldn't see anything useful though, as you would have to be very far away (almost certainly too far to detect a planet this size) and the best you could do is look at cloud cover and continental arrangement.

On a side note, if anywhere there is an object in space capable of refracting/reflecting light from Earth directly back at it, the same effect could be observed.

There is a little bit of confusion in your statement. We have already seen back to the beginning of the cosmos - the Background Microwave Radiation. So we cannot see any further back in time. If we were to travel in a space ship from earth in the direction of the Andromeda galaxy, for example, we wouldn't see further back in time, but we would see the light that would reach earth from Andromeda sooner than if we were on earth. However, we would see the light that came from the other direction later than if we were on earth.

IF you COULD travel faster than light, and IF relativity is wrong so that no strange time dilation effects would occur if you DID travel faster than light, then you still could not travel in time. You might be SEEING that distant planet as it was 100 years ago, but when you got there in your extremely fast spaceship, it would be now and not 100 years in the past.

First if time return and forth is obtainable the two forward and backwards then time might could desire to be parallel and not linear. And particularly of travelling alongside a linear timeline we would be travelling throughout, leaping sideways, by way of time. which might mean that each and all and sundry time became into created, previous present day and destiny, on the 2d of creation. yet another element to think of approximately is that in case you outfitted a time gadget and them projected your self to return and forth a million hour into the destiny. right here may well be right here to any extent further. on the fee of the earth's rotation and orbits right here may well be someplace out in area.

There's no need for us to travel faster than light - the further we look into space, the further back in time we are looking.

If you really want to travel in time, you must try sniffing cocaine, that should do it...! In this way you could even feel the 4th dimension relativity, like if you're in 4D...! Thats true...!!! Hence theory of time traveling is proved...! Human race can do it...!yayyyyyY!!!

Pretty dumb really. The closer you got to the distant planet then the younger would be the light you received.By the time you got near it the light would be 'present time' light.

How the hell does that make time travel work???

Being that i have absolutely no knowledge of anything you have just stated it sound like you are correct. However, someone with more training and knowledge on the subject will probably come along and point out the holes in your theory. lol Good Luck traveling through time buddy.

a vibrating magnetic field should get a ship threw space and into 'gel dimension.Then chemically to the gate.