Relativity - Chapter 4 of 6

[stingyringpiece]

Question: 1 way 2 travel space,point to point but then who sets up the receiver 4u2 materialize, or will quantum entanglement have something 2 do with it seeing as we exist in all space/ time at once?How fascinating, or this question "if light has taken a billion years 2arrive at my eye from a star im observing, doesn't that mean id have2 travel a billion times faster than light 2 get there" and will it be the image i see due to time dilation, everything else will have aged exponentially? thanx

[lattask8er]

@cassiopeiaproject So, I guess like a person in a car doesn't know he is going 60mph, a person going faster than light might not realize he is going back in time. However, what would an outside observer see? And if they both had clocks attached to them how would both observers clocks appear to move in relation to each other?

[Alexrulz99]

If time is still for a beam of light, then why does it take 8.32 minutes for light from the sun to reach the earth?

[cassiopeiaproject]

@Alexrulz99 8 minutes is the time it takes in YOUR frame of reference -- not the frame of reference of the light.

[flapinux]

Jeeves said Nucular

[zacthemanwonder]

@alphatelescopii no bc that person isn't accelerating he/she would just skip the speed of light and proceed back in time but bc of the insane speed of light they wouldn't be able to travel that much faster than light so the time traveled back in time would be minuscule and barely even noticeable if at all

[zacthemanwonder]

There is only one problem so far technically the only way for the two beams of light to move parallel to each-other is if they were fired at the parallel in space so in ur animation the light beam from the still ship couldn't catch up to the other beam bc the would be moving at the same speed

[Squashsplatt]

OMG the time and space chart IS scary! So, the faster you move/live etc the slower time "moves" for you. That can be aplied to animals that have slower/faster metabolisms? Time would appear slower (than us) for a humming bird as its metabolism is faster?

[Dannepihls]

@Squashsplatt

The time won't slow down for You, it will flow normaly to you. INSTEAD, the distance to the place you're moving to will be shortened. 

[uut0]

what if i would build a warp drive that contracts space in front of me and expands it back of me so that i could travel huge distances without really moving at all. i could go faster from A to B then light. would i travel back in time?

[cassiopeiaproject]

@uut0 Forget the warp drive. If you could travel faster than the speed of light, you would travel backwards in time according to a stationary observer.

[alphatelescopii]

@cassiopeiaproject How would this make sense? The observer would see you going back and to the point where you were at c. Then they would see your time as stopping. But knowing that... Before they could see you go backwards, they would see your time stop, and you stop. Or am I approaching this waaaaaaay wrong?

[BeekersSqueakers]

Is Nasa actually coming up with a plan to mine the moon? I thought that was just science fiction.

[cassiopeiaproject]

Mining is certainly one of the reasons for returning to the moon.

[TigerSlashX]

cool story, bro

[BeekersSqueakers]

These guys are making Jeeves do all the work.

[schlynn]

Shut up. Google search "virtual particle" and click on the wikipedia link. These particles can break the e=mc^2 equation. The only reason that I am telling you to shut up is because you brought God into a scientific conversation.

[llsoundwavell]

the Bible contains information about what will happen in the future. the future mastered moving faster than light, making for them possible to travel back in time.

[digitised]

And snakes used to talk...

[llsoundwavell]

ah, that's false...

[digitised]

Yes of course it is, i read it in an old story book called the bible.

[MaDrung]

This major changed the way I see the world. I always thought that time actualy don't exist in a way scientists are presenting it. But now I see its much more complex. So then it is possible to travel to far away places (like other galaxies) if we reach huge speeds? Cause time would shorten aswell you woul'd get there faster. If this is true we just need the right force to push us trough.

[cassiopeiaproject]

It is true that if we travel fast enough time-dilation would allow us to reach very distant places.

[Parson2]

but time for the rest of the matter in the universe would be the same, so to them we'd be frozen in time shooting through space and they would age normally and die.