Natural Science Forum / Physics / Relativity / September 2008

I don't really know how to explain,
that by the accellerated expansion  of  space in the universe,
c = not the limit!!
we had here a argument about it!

This week's startup of Europe's Large Hadron Collider didn't generate
a big bang or a black hole, but it did generate a big reaction from
folks
who followed our series on the "Big Bang Machine."

A fun exercise to see why wavelength times frequency
does not give you "relative" speed when the perceived
wavelength is used instead of the "physical" wavelength.
Lets have a yardstick be 3 wavelengths long. (physical wavelengths)

I've posted under various aliases - pay the name no mind
But this is serious. We all know of Black *Holes*. And many of us also understand that
an accelerating observatory leaves in its own wake, by virtue of its steep
acceleration, an Event Horizon or apparent Black Wall, uh in ...

Time Dilation reduces the Speed of moving Objects
When Lorentz invented time dilation as part of his contraction
hypothesis he did so to allow the speed of light to remain constant.
He realized that if  the length  of a moving object contracted, its

Hi, I'm a new member of this group. I believe BURT is talking to deep
for any one to understand. So, BURT please talk about some intresting
facts which everyone can understand.

Hot off the presses.
http://en.wikipedia.org/wiki/Wikipedia:Articles_for_deletion/Galilean_Electrodynamics
A mere six people blasted this article out of wiki-existence.
Grab your indignation, ye independent thinkers, authors,

After trying to understand how a Faraday disk works using Maxwell's
equations, I concluded that I do not really understand the disk. The
usual description of induction starts with del X E = -dB/dt. I have
taken some liberty with the notation so that it can traverse the web.

What is "null infinity" ?
I am researching spacetime singularities and found several references
to articles that refer to this and "conformal infinity".
Need a quick concise definition, and possible references to read.

I'm looking for a derivation of the Lorentz transformation, but starts
from the Galilean transformation without knowing beforehand that " c "
is part of the constant "gamma", yet it pops out necessarily.
Pretty sure I've read it somewhere.

Is mass just an invisible container of electromagnetism which we
consider as matter?
I don't have a clue about physics so please answer as easy for me as
possible.

Spaceman "explains" every relativistic experimental claim by asserting
that "the clock malfunctioned."  How does he know that?
His only "proof" is that the moving clock ran slower than the
stationary clock.  So, what's his point?

At the center of a black hole, we supposedly find
a singularity, a point of infinite density.  Does that not
violate the position-momentum uncertainty
principle, shouldn't we expect some 'fuzzyness'

For components of vectors, v' ^ n, v ^ u
              v' ^ n = (@x' ^ n / @x ^ u)  v ^ u
which says roughly that in order to track the variation of a function
wrt x' ^ n, we must track its variation over all the x ^ u,

The Michelson-Morley experiment shows that the one-way speed of
light is different from c:
_________________________
Let's call S the "ether" frame, and S' the interferometer frame.