Re: Twin paradox revisited ll



bill says...

On Jul 18, 12:05 pm, stevendaryl3...@xxxxxxxxx (Daryl McCullough)
wrote:

Having experienced the force of acceleration during take off and
having thereby concluded that he is moving away from the planet

He can't conclude that. Look: suppose you are on the roof of
a moving train. You jump to the ground. After a brief period
of acceleration, you are now at rest on the ground. You are
the one who felt the acceleration, not the train. Can you
therefore conclude that you are the one who is moving, while
the train is at rest? No, of course not.

The acceleration that I experience is *negative* acceleration, I am
aware of the fact that I am progressively *slowing down* so it would
be ludicrous for me to even think that I am moving and the train is at
rest.

Your analogy is nonsensical.

Oh my gosh, you really don't understand even Newtonian
physics, do you? There is no such thing as "negative
acceleration". Acceleration is a *vector*. It has a
*direction*. What you are calling negative acceleration
is just acceleration in the opposite direction from
the direction the train is moving.

Your complaints here really don't have anything to
do with special relativity. Your problem is with
basic physics. Relativity should come *after* familiarity
with basics of motion.

--
Daryl McCullough
Ithaca, NY

.



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