Re: DECW$CLOCK design flaw !
From: Alan E. Feldman (spamsink2001_at_yahoo.com)
Date: 11/25/04
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Date: 24 Nov 2004 17:57:54 -0800
spamsink2001@yahoo.com (Alan E. Feldman) wrote in message news:<b096a4ee.0411241522.30b5c839@posting.google.com>...
> hammond@not@peek.ssr.hp.com (Charlie Hammond) wrote in message news:<5ZMod.3409$CF2.1718@news.cpqcorp.net>...
> > Somebody wrote:
> >
> > > Time is like a river. It flows into one direction.
> >
> > "Time, like an ever rolling stream,
> > bears all its sons away.
> > They fly, forgotten, as a dream
> > dies at the openging day"
> >
> > Oh, come now!
> >
> > Time is a DIMENSION -- just like space.
>
> Well, yes and no. You measure space with rulers and you measure time
> with clocks. It's easy to tell the difference.
>
> If you divide a length by a length, you get a ratio -- a pure number.
> If you divide a length by a duration, you get an average speed. Quite
> different.
>
> In one sense it is more accurate to say that ict is a dimension
> (with i = (-1)**0.5, c = speed of light, t = time). This is because
> when you measure a light ray, you get by using the distance formula
> and the basic relation that distance equals speed times time
>
> x**2 + y**2 + z**2 = (c**2)*(t**2)
>
> where x, y, z, and t are really delta_x, etc. (This is the starting
> point of deriving the equations of Special Relativity. From this you
> can get negative delta_x, etc., as "solutions", but you can do the
> same with the Pythagorean Theorem, so I wouldn't take such negative
> "solutions" too seriously.)
>
> By setting x_0 = ict, x_1 = x, x_2 = y, x_3 = z, you get
>
> x_0**2 + x_1**2 + x_2**2 + x_3** = 0
Uh, make that
x_0**2 + x_1**2 + x_2**2 + x_3**2 = 0
>
> and they all look alike. NTL, time as a dimension has different
> qualities from the spatial dimensions as I explained above.
> Releativity theory does, howevver, show that space and time are
> inexorably intertwined. This is what gives us length contraction and
> time dilation for things moving at relativistic speeds.
>
> Other equations in special relativity turn out nice if you set the
> fourth dimension, x_0, to ict .
>
>
> > Time and space do not move or flow; we move within them.
> > Exactly why we percieve ourselves to be moving constantly
> > in one direction in time is not understood.
>
> Well, maybe Nature uses the KISS philosophy; it's certainly simpler
> this way!
>
> >
> >
> > And somebody else brought up the:
> >
> > > Second law of thermodynamics.
> >
> > Statements of the Second Law which appear to rule out
> > movement in time in either direction are flawed.
> >
> > It is left as an exercise to re-state the second law
> > so that it admits negative time without changing its
> > application when time moves posatively.
>
> ???
>
> >
> >
> > (Can you believe my original [poor?] attempt at
> > humor has led to this discussion!?)
>
> Yes.
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