KenONeill

AIUI, because your moving at lightspeed, you are effectively light aa far as the clock and waterfall are concerned, and vice versa, so you'd not actually percieve either of them at all. That said you're correct; if you could percieve them they'd appear as still images because you'd be moving at the same speed as the photons from a given instant.

KenONeill

If you mean the same man in a wheelchair that I think you do, you know that he thinks there's a hole in Special Relativity big enough to fly a "warp-drive" starship through?

JRHartley

Bl00dy computer !!! ARGGH
I am about to test a few of Newtons laws

Newton's First Law (also known as the Law of Inertia) states that an object at rest tends to stay at rest and that an object in uniform motion tends to stay in uniform motion unless acted upon by a net external force.

Where the object = my PC
and net external force = me picking it up


Newton's Second Law states that an applied force, F, on an object equals the time rate of change of its momentum, p. Mathematically, this is written as Assuming the mass to be constant, the first term vanishes. Defining the acceleration to be results in the famous equation which states that the acceleration of an object is directly proportional to the magnitude of the net force acting on the object and inversely proportional to its mass. In the MKS system of measurement, mass is given in kilograms, acceleration in metres per second squared, and force in newtons (named in his honour).

Where F = me, Mass = PC and acceleration a is anular change in velocity derived from the length of my arms x my current state of anger

Newton's Third Law states that for every action there is an equal and opposite reaction.

Centrifugal force = centripetal force until target = window and Grip = zero then F=ma

at which point window = zero and PC = nice new shiney one

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KenONeill

I think I see what you mean. It's impossible to exceed c in normal spacetime, in a single IFR. The trick with the 2 light beams is to realise that if you define one of them as the origin of your IFR, then it becomes stationary, and the other moves towards it at 2c, but it's no longer in normal spacetime, because you're using a non-standard IFR.

ap0gee

The only example I can think of off the top of my head where "time" couldn't be argued away as a convenient means of ordering the passage of history is radioactive decay, where the half-life of any given isotope is constant. I don't know whether this would apply at extremely low temperatures, though, but certainly within the 'natural' environment, λ is constant and so the nature of the material decaying can inarguably be shown to change at a constant rate with respect to "time"...

I've still got the use of my legs, but...

'c' is only valid for a vacuum (which, conveniently, can never truly be acheived) - indeed light can be slowed down or sped up by passing it through materials of different refractive index. If this phenomenon didn't exist, then speccy four-eyed ****s like myself would still be fumbling around, squinting!

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KenONeill

You're confusing spacetime with duration. What we measure and call "time" is actually duration. It's every bit as much a set of conventions as measuring distances, temperature, power etc is.

JRHartley

Did you know that ...?

.if you give an infinite number of monkeys an infinite number of keyboards then....



















.....eventually one will write the code for microsoft windows XP

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swedishskoda

I guess that one also could rely on the second law of thermodynamics where the process of ever-increasing entropy add to the plausibility of a linear space/time continuum (only that it's not 100 % continuous since with maximum entropy "time" in this sense will cease to exist)

ap0gee

Cutbacks meant Vista was written by a much smaller team!

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ap0gee

...only in a non-infinite universe! As long as it's infinite, maximum entropy could never be achieved...

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Loz

What on earth do all your abbreviations mean?? AIUI, IFR, c?


I was only talking hypothetically anyway

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Can't change the way I am, sexy, naughty, bitchy!

KenONeill

AIUI - As I Understand It
IFR - I specified this one when I first used it, but just for you - Inertial Frame of Reference.

As an aside, your understanding of relativity etc isn't at all bad. Are you another one who really has read "A Brief History of Time"?

mac67

So did i. Two beams of light travelling towards each other will be travelling at twice the speed of light relative to each other!

*goes for a lie down*

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Captain Kremen

Yep, that's what I was saying.

It's all relative really though.