On Nov 4, 2009, at 11:49 AM, Abd ul-Rahman Lomax wrote:
At 12:00 PM 11/4/2009, Horace Heffner wrote:
As a passenger in a 1 g ship, it would appear you can effectively go
faster than c because the distances appear to shrink.
If they appear to shrink, then why would you think that you are
going faster than c?
If we observe the passengers in fligt then we see their ruler
shrink. If they observe us, to them it is our rulers that shrink.
What you'd see was this road whizzing by with mile markers that
were closer and closer together. Why would you think you were
travelling faster than c?
Counting the mile markers and dividing by your clock time tells you
you are going faster than c.
Only from a memory of how that universe looked like before it shrank!
Right!
So you'd look at the road signs that are separated by an inch, and
you'd see, say, one that is mile marker 349786920, and, then a
second later, one that says 350086920, and you'd say, wow! we are
travelling at 300,000 miles per second! I don't think so!
Depends on how you set up your navigation computer.
Yes, if you are sitting "still" and want to travel to some far
star, and you can accelerate to however close you want to the speed
of light, you can get there is practically no time at all, once you
are going fast enough. But.... there is still this little problem
of a few hydrogen nuclei in the way. They would be coming in with
how much energy and at what rate?
There has been a lot of stuff written on that. One idea is to injest
the matter, which is mostly hydrogen, and use it for fuel. That kind
of idea is for a class II or II civilization though.
If you could
ride on a photon how long would it take you to travel a light year?
Zero seconds. From the viewpoint of the folks at home, you never go
faster than c.
Nor from your viewpoint, either. Only with a "mixed viewpoint,"
where you measure distance based on what it was when you were at
home, could you say this.
Again, depends on what option you bring up on your flight navigation
computer. 8^)
That is because the information about you, your
messages, your telescope image, arrive back on earth at c. Further,
as you approach c, the quality of the information about you degrades
as you depart, it drops in frequency. If instant quantum
communication can be sustained through acceleration, then it is a
whole new ball game. Relativity is out the window. The folks at
home can watch the whole journey from your perspective. More
importantly, you don't even have to go. You can just send robots and
stay home and watch.
If. No indication at all that it can happen.
Well, I can see you haven't been talking to the Greys. 8^)
Actually, instant communication would not reduce the time it takes
to get there. I.e., if you can sent bots at high acceleration
sufficient to reach near-c, that can communicate back when they get
there instantaneously, and it would take enormous energy to do this
to the nearest stars,
You are still locked into that reaction mass drive, relativistic
mass increase, have to take all your energy with you paradigm of
thinking.
you'd still be limited by the time it takes for the bot to get
there. That's in your frame.
No that is in both frames because the communication is instant.
Relativity is gone.
So as many years, minimum, as it takes light to go to the place.
No, you are only limited by the time it takes the robots to get
there. Quantum communication is instant. However, time is not so
important in the larger scheme of things. If we sent out a fleet of
self replicators, then it might be used for research for generations.
And then you'd have the teeny problems of how to manage a quantum
entangled signal back home over that distance. Maybe you could
carry a lot of entangled photons home and leave the pairs behind.
You've already sent the signal, and have received it, when you were
home. "Do Not Open Till Arrival." So how to you send a signal this
way? Beats me.
I don't think quantum communicators of this kind, if they are ever
built, if they can be built, will use entangled photons. They will
probably use huge numbers of spin entangled particles, qbits, for
reliability and to support re-entangling processes. Quantum
computers will undoubtedly be built long before effective quantum
communication of this kind can be maintained for generations and
across galaxies.
If you can go across the galaxy at what appear to you to be multiples
of c, or compress the distance by a comparably large fraction, and
actually arrive somewhere, it shouldn't matter what the folks at home
think they know about your progress. That doesn't change the fact
you arrived.
Yes, you can get there fast, if you can approach the speed of
light. And can survive the onslaught of the radiation and mass
attack. Somebody do the math if they want do, I don't.
A lot of math on the subject was done in Paul Hill' book on the
subject. Some of the theory was based on the author's personal
witnessing of UFOs, and from observations by people he considered
credible. Paul Hill's notes were published in the form of this book
by his wife after he died.
Best regards,
Horace Heffner
http://www.mtaonline.net/~hheffner/
