Re: Einstein swinging from a rope


"Mark" <markhu@xxxxxxxxxxxxxx> wrote in message
news:dwfKf.3542$UN.2927@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Einstein's writings indicate that the gravitational field in essence is
non-different from the effect of swinging a box around in a circle on the
end of a rope. There is of course a hypothetical scientist standing on
the
floor of the box in circular motion.

Any opinions?
Sure.
You are referring to what is known as the "Principle of Equivalence",
Einstein went in for grand sounding names.
Actually there is no equivalence, the Earth is swinging on a long
elastic rope around the sun except the elastic does not obey Hooke's
law, force proportional to stretch, a law we use for spring balances.
The further we are from the sun the weaker the force, hence it cannot be
equivalent.


Please don't get too technical. I can appreciate space-time
theory, but I cannot understand such essentials as Maxwell's equations.

The heart of Maxwell's equations is the sine and cosine of a point
moving in a circle.
Without being technical as you ask, the rate of change of sine is cosine.
Why this is so is for mathematicians, but it should be intuitive if
you create a table of sines and cosines and examine the successive
differences.
I did this little one with a spread***, it can't be exact, of course
but it shows the idea, the sine sequence is similar to the cosine
differences.
Angle 0-2pi Cos(angle) Sin(angle) Cos Difference
0.00 1.00 0.00
0.31 0.95 0.31 0.05
0.63 0.81 0.59 0.14
0.94 0.59 0.81 0.22
1.26 0.31 0.95 0.28
1.57 0.00 1.00 0.31
1.88 -0.31 0.95 0.31
2.20 -0.59 0.81 0.28
2.51 -0.81 0.59 0.22
2.83 -0.95 0.31 0.14
3.14 -1.00 0.00 0.05
3.46 -0.95 -0.31 -0.05
3.77 -0.81 -0.59 -0.14
4.08 -0.59 -0.81 -0.22
4.40 -0.31 -0.95 -0.28
4.71 0.00 -1.00 -0.31
5.03 0.31 -0.95 -0.31
5.34 0.59 -0.81 -0.28
5.65 0.81 -0.59 -0.22
5.97 0.95 -0.31 -0.14
6.28 1.00 0.00 -0.05

The derivative of sine is cosine.

Maxwell's equations say that the rate of change of the magnetic
field gives the electric field, and the rate of change of the electric
field gives the magnetic field. This is what happens in a transformer,
for example, and we've been using sinusoidal AC since Tesla.
Edison doesn't get a look in, he wanted DC but you cannot change
the voltage of DC.

I
haven't even figured out what a tensor is.

It's a matrix.
http://en.wikipedia.org/wiki/Matrix_(mathematics)


I don't support contemporary
contentions that Einstein made mistakes that need to be corrected.

That's bigotry. He did make mistakes, huge ones. He was a mathematical
incompetent. <shrug>

I
suspect that the problem is that far too few people can really understand
what he said.

I know and understand exactly what the idiot said.
I suspect the problem is idolatry.


The primary warning in space-time theory is that our
perspective is flawed due to the fact that we do not know what our
relative
state is. We cannot trust what we perceive.

Too true.
Sticks in water appear bent, but they are not.
Stars appear to regularly vary in brightness, but they do not.




The problem is that the high-energy state of the components of our
reality,
electrons etc., renders them space-time phenomena. That is, they are
grossly affecting the reality that we perceive. That with which we
perceive
is also made of what we are perceiving. The mass-energy relationships of
the components of our reality cannot really be known from our perspective.

We only perceive the outcome. The true nature of what we perceive to be
an
electron may be very different. Mark


You don't stand a ghost of a chance by swallowing anything Einstein said.
Ask Cassini the time. NASA-JPL do that all the time, and it doesn't agree
with Einstein. He'd be off by 14 seconds, a huge amount for a clock that
can measure microseconds.
http://www.androcles01.pwp.blueyonder.co.uk/Synchronize/Synchronize.htm

Androcles.





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