alright im getting confused with all of his theories and shit, and i need some simple explanations

-so on a physics test, can't all of my answers be correct because it's relative to the observer(me)? like, can't i be a dinosaur if someone honestly believes i'm a dinosaur; it'd be relative to the observer, right?

-i do not understand even a little, how if you travel as fast as/faster than the speed of light, you could travel back in time



these aren't really homework questions either, i'm just dumb and didn't understand the lecture today

This post was edited by McFacializer on Apr 28 2011 12:03am

You're a dinosaur. rawr and stuff.

This post was edited by pigletopeth on Apr 28 2011 12:06am

Get out of physics...

Q1 answer: no. go to Wikipedia and look up inertial reference frames. It has nothing to do with what you believe. It has to do with physics

Here:

1 http://en.wikipedia.org/wiki/Time_dilation
2 http://en.wikipedia.org/wiki/Theory_of_relativity

In the universe time and speed are related to each other.

It's not travel back in time... it's forward. 1 year at l/s and you forward aprox. 80 years. And the dinosaur part... no comments.

greatest thing ive ever posted, holy shit

Not true.

Time is relative.
If you travel faster than light speed you go back in time.
If you travel at light speed you go forward in time (actually if you travel any speed you are going forward in time...but the faster the speed the faster time passes for you relative to an observer).

When you go the speed of light there is no concept of time relative to you.
If you travel at the speed of light for 10 years, relative to an observer on Earth, no time would have passed for you but 10 years would pass on Earth.
If you travel faster than the speed of light then you go backwards in time.

Hmm I guess you can think of it like time moves at the speed of light.
When you are going really slow relative to that (like a car/plane/sitting still w/e) time is passing you by at effectively normal speed.
When you go faster such as .5c (half the speed of light) time passes you by slower because you are traveling closer to the speed of light, so you are keeping up closer with time.
When time passes you by slower its like time passes the outside world faster, so you are traveling forward in time.
When you are going lightspeed you are keeping up with time so no time passes you at all.
When you are going faster than lightspeed you pass time, so in effect negative time would pass you, or you would go back in time.

It is possible for massive objects to travel infinitely close to (but never reaching) the speed of light.
It is not possible for massive objects to travel the speed of light, to travel at that speed it must be massless.
It is not possible for massive or massless objects to travel faster than the speed of light, it must be imaginary mass.

This post was edited by murder567 on Apr 30 2011 06:26pm

EVERYTHING IS RELATIVE, EVEN THE LENGHT OF YOUR PENIS COMPARED TO OTHER MEN

roger that.

from what you explained, im imagining it like this:
so if someone were to shoot a beam of light into space, and i was able to travel faster than the speed of light i would be able to look down through that beam of light and see that person in the act of shooting the beam of light?

This post was edited by McFacializer on Apr 30 2011 10:48pm

You can't go back in time as you can't go faster than the speed of light. And if it was remotely even possible, you could only see ''images'' and you couldnt interact with it.

And for the 1 year aprox. 80 years on earth is exaclty the theory of Einstein. But the real question is: Does it really matter?