Posted on 03/20/2005 8:31:45 PM PST by KevinDavis
Einstein's special theory of relativity predicts that nothing can exceed the speed of light. But special relativity applies when spacetime is flat. When spacetime is curved, the theory applies only "locally"--that is, over regions of spacetime small enough to be considered flat. Consider the analogy of a plane that is tangent to a sphere. The flat geometry of the plane is a good approximation to the geometry of the sphere when the size of the plane is very small compared to the sphere's radius of curvature.
(Excerpt) Read more at sciam.com ...
Speaking of diamonds, have you heard about research in light based computers using artifical diamonds as light based CPUs.
I was thinking of sending them into a convenient black hole. Who said anything about installing manual controls on the ships?
What if speed is only relative to where you are actually are and you can continue to accelerate to a unlimited speed. For example, you are actually sitting still in an automobile or airplane, but the automobile or airplane is moving as is the earth.
"What is the Space Time thing?"
A guy on a moving spaceship shoots gun once and again at a later time.
All observers will measure a distance and time between shots where the change in distance squared minus the change in time squared equals a number that is the same for all observers.
That clears that up.WOW what a chowderhead I am.Stupid me!!!
So I says, if one can see, perchance, back through time via the Hubble telescope, the epicenter of the big bang, and if stronger resolution affords me the ability to see the other side of the epicenter of the big bang, do I see time from the beginning to the past?
Is then time travel capable to the future?
Just a barnacle on my hull through life.
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You got these twin brothers, see...
One takes off on a space ship, going to point A.. and he then will return..
The round trip, at the speed of light, will take say, 10 years..
Space twin returns to earth in what, to him, was 10 years..
Space twin finds his earth twin has aged say, 50 years, and is now 40 years older than brother space twin..
As you approach the speed of light, time itself is changed.. or how we (travellers) experience time..
The "basic" explanation is that time slows down..
I'm sure that's not accurate, but for the non-physicist layman, it's close enough..
The idea is, when at say, 60 % of light speed, it takes you 200 years to take a sip of your coffee.. to you, it's only 5 seconds.. for anyone observing you from outside of your rapidly moving craft, it's 200 years..
That's where the controversy comes in concerning faster-than-light travel...
Some (sci-fi authors especially) have postulated that travelling FTL would or could result in "time travel", actually reversing time..
Whether time would reverse within the traveller's ship, causing them to get younger is a problem... but, at any rate, travelling to another solar system, or even another galaxy would then be "theoretically" possible..
Simply "time" your round trip FTL travel to bring you back within say, a year of your departure..
All sorts of rules concerning time paradox says this is extremely dangerous, if not impossible..
More than you ever wanted to know about relativity and the space time thing.
When we look at the center we see what happened 10 billion years ago..
In order to see the Big Bang actually happen, you would have to go more than 15 billion light years away from the center of the universe..
You would also have to travel faster-than-light to get there in order to see the BB happening..
Travelling at light-speed, you would always be 5 billion years too late to see the BB happen..
...... Moral Hazard (I'm an atheist gamer. I don't believe in God Mode.)
......Morale Hazard (I'm an relativist gambler. I absolutely do NOT communicate in Moral Mode.)?
naw,....
Sorry, I'm sure I totally missed your 'point'.....
Colossians 1:16,17
It be like flying from Atlanta to Birmingham in one of dem fast jets, dat thing is so fast, it get der before it take off.
When you leave, don't forget to turn out the light.
He was multitalented and did more than one thing.
Actually, according to Einstein, gravity travels at exactly the speed of light. If ths sun were to disappear or explode right now, we wouldn't know or feel anything for a full 8 minutes.
I am curious, how can an individual travel through time.
If you did this, you would have no where to stand, until the universe returned to it's position ftom when/where you started your time travel.
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