this is a problem no time travel movie has ever dealt with — unless you can think of one!!
ANOTHER Isaac Asimov story assumed that this DIDN'T happen and they were stuck.
Back to the Future: Tokyo Drift answered all of the questions I ever had about time travel.
This is not a problem. The Earth's movement relative to what? The sun? The center of the galaxy? If you stood still for 500 years you would still be on the earth's surface, and that's just what would happen if you traveled in time.
What always bugged me is, assuming there's some explanation for the car staying in the same place on Earth how can they drive up to 88 on a road, time-travel forward, and continue driving on the same road a 30-70 years later without trouble? Chances are the road's been resurfaced over the decades and is measurably higher in the future. The tires should have suddenly found themselves embedded in a few inches of asphalt at the moment of temporal displacement, leaving the car to skid to a halt on shredded wheels.
Long time listener, first time caller. Big fan. Loved seeing you guys at PAX.
I am dissapoint!
The earth (and in fact all massive objects) create a gravitational "trough" in spacetime as they move through it! Just as you and I are stuck in earth's gravitational "well" as we sit here (nearly stationary, or at least traveling very slowly on the time axis) so too are we confined to it's "trough" if we travel quickly along the time axis, ending up in the same place on earth we left from if we travel rapidly through time, unless we expend considerable energy to avoid doing so. (Imaghe a device that was not only a time machine, but simultaneously a rocket meant to escape earth's gravity)
I've always thought that because time and space are one, that the gravity well caused by the earth would anchor any time traveller as they passed through the fourth dimension.
Space Time is the answer.
actually, rosendorfers novel "briefe in die chinesische vergangenheit", (german wikipedia article translated here: http://tinyurl.com/6y5lk32) deals with this problem. the protagonist travels from ~1000 bc to the 1980ies and, not having calculated earths rotation, finds himself in germany instead of china.
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Well obviously the flux capacitator is fed by the souls of 100 damned children, which Doc Brown bargained for when he summoned Morax, a great Earl and President of Hell, who teaches Astronomy and liberal sciences and gives good and wise familiars that know the virtues of herbs and precious stones. There is strange magick at work in the Back to the Future universe.
Or you know, you could just take it all with a grain of salt because they're popular fiction, and popular fiction is always going to get it wrong. Be glad you were entertained.
It just proves that time travel is only possible in alternate universes where the Earth is at the center of everything.
i remember not being able to think of anything intelligent to say (except to prove i understood the problem) when two smart guys started talking about this issue in front of me. great conversation, though — speaking as a listener. damn it.
the displacement issue is just as bad, as reader "1415dr" mentioned. time travel tends to involve some kind of teleportation (which is what has the displacement issue). if you were a foot too low, do you fuse with the ground or displace the volume into the time you came from? you can't avoid displacement even with a perfect "landing", unless you are planning on arriving in a vacuum-sealed room of sorts. otherwise you end up with a body that is now half air, right?
The tv show seven days took this into effect. Frank's sphere would go into space and crash to earth.
We probably shouldn't even put the Expanding Universe Theory into play here too.
I do believe Doctor Who has had to deal with this on occasion.
It's possible that as they move along the t axis, the gravitational warps caused by the earth and sun keep the Delorean moving with the earth. solar system, galaxy, etc. in the x, y, and z directions.
The simplest explanation would be that because space and time are not separate things, if one was able to travel through time, "theoretically" they would be able to move through space as well so it wouldn't be an issue.
20 years ago I read some random thing about the actual physics necessities for time travel, and one of the conclusions they came to was that the ability to travel through time would also allow for travel to any point in the universe. As such, if you have a time machine you also technically have a "go anywhere" machine, and it's just a matter of having a computer powerful enough to calculate galactic/universal object positions for the time you're targeting.
the fallacy is that you can't measure change in an object position through space unless compared to two objects' positions… which in theory could also completely change positions yet stay in relation… so fuck I dunno. try silly string, that shit gets jobs done.
This is hardly a new problem. HG Wells forgot to consider it in his 1895 novel, "The Time Machine".
Aaron Diaz' Hob story in Dresden Codak had an interesting solution for that. An artificial wormhole makes time travel possible, but only as far to the point at which it was created. So you look out for naturally occurring wormholes. But you cannot be sure, in which era you're going to land. So you send a robot carrying the artificial wormhole through the natural wormhole. He's flying through space with earth as his destination. Once he lands there you have a direct time connection to the past earth.
You should check Dresden Codak out. It's fantastic.
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Maybe something like a gravitational path
I doubt there's a movie version though.