Proberly never well not in our lifetime anyhow.so i wouldn't even both thinking about it.
Answer:
We all travel through time in one direction (past --> present --> future) at present at one ses/sec. Faster forward motion and backwards motion in time is not ruled out by physics.
Quantum mechanics postulates a fundamental symmetry in nature which lets equally valid universes be built up using negative time flows.
The idea of time travel has appeared, especially in fiction, repeatedly. It was gradually developed, by many Science Fiction authors.
yes. if light didn't travel through air, then you wouldn't be able to see anything!
Photons do not travel through time. This is due to the fact that the faster you travel through space, the slower you travel through time. In other words, if an object is standing still, it is traveling at the speed of light through time, and since a photon travels at the speed of light through space, it is not traveling through time. -- Asker here, I hope no one minds me editing in to expand on the question/answer given. Surely the answer must be more complex. If a photon does not travel through time, then that could potentially violate/invalidate causality.
no
There is currently no know and confirmed way to travel in time.
The best fictional way to travel through space fast without messing with time is teleportation.
a genetic disorder
No one has traveled through time before. In stories, people travel through time in a time machine.
no
Sound
Radiations from the sun are able to travel through space because of the heat waves.
yes. if light didn't travel through air, then you wouldn't be able to see anything!
gravitational pull
you can'tAnswer:At present we all travel through time in the positive direction at the rate of 1 s.s-1. Time travel in any other direction is presently unattainable.
Photons do not travel through time. This is due to the fact that the faster you travel through space, the slower you travel through time. In other words, if an object is standing still, it is traveling at the speed of light through time, and since a photon travels at the speed of light through space, it is not traveling through time. -- Asker here, I hope no one minds me editing in to expand on the question/answer given. Surely the answer must be more complex. If a photon does not travel through time, then that could potentially violate/invalidate causality.
Wormholes are theoretical. It is unlikely we will ever be able to travel through one if they are proven to exist.
Santa doesn't travel roads. He and his reindeer, who pull the sleigh, travel through the skies. That, plus the time difference, is how he's able to get to so many houses in one night.
Secondary waves are transverse or shear waves which are able to pass through solids, but are not able to pass through liquids.