Re: Comics: the twins paradox in "prof" Subask kak's view

On Mar 7, 1:59 am, "harry" <harald.vanlintelButNotT...@xxxxxxx> wrote:
<karandash2...@xxxxxxxxx> wrote in message

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On Mar 6, 9:11 am, "harry" <harald.vanlintelButNotT...@xxxxxxx> wrote:
<karandash2...@xxxxxxxxx> wrote in message

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On Mar 6, 7:19 am, "harry" <harald.vanlintelButNotT...@xxxxxxx> wrote:
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On Mar 6, 5:36 am, "harry" <harald.vanlintelButNotT...@xxxxxxx>
wrote:
<karandash2...@xxxxxxxxx> wrote in message

Hence , he's
"discovered" another paradox. Someone needs to tell him about how
to
calculate:

Integral(sqrt(1-(v/c)^2) *dt
Not on my computer screen where I see twin paradox type exercises,
apparently for students. Perhaps you gave the wrong link?
Here is what he writes:

"According to the earthbound twin, it is the twin in the spaceship
whose clock would register less time (what English!) since it was
the
one that went thru acceleration/deceleration" (what physics!)

Let's hope that he knows how to calculate that. He'll probably say
that
you're a good student. ;-)

He doesn't, otherwise he would not be writing the idiocies you see
on
his webpage.

*"According to the earthbound twin"* - Kak is not that twin. In
contrast,
according to Kak:

"A "resolution" may ignore the fact that the Earth itself is not
moving
in
uniform motion, and that not only is it moving around the Sun, which,
in
turn, is moving in the galaxy, and so on"

What are you trying to say? Kak is obviously wrong (and confused, on
top of that), don't you agree?

Wrong about what? As he points out in his introduction, paradoxes are
usually made by implanting wrong suggestions in the reader's mind. He
presented several such variants of the twin paradox, without telling the
students in detail where the errors are (that's for them to figure out!).
Perhaps you read something else of him?

His whole paragraph is wrong,

That's the very *purpose* of such paradoxes - trigger the student's minds to
find the errors.

he obviously has no clue how to
calculate the elapsed time for each twin in order to do a proper
comparison.

Again, probably you are thinking of another article by him and you project
that information on this article - for there he does not provide his opinion
about the solutions.

Of course he does, he's getting all confused in the different frames
of reference (Earth vs. Sun) while computing the proper integrals as I
explained to you would have given an unambigous answer right off the
bat. How many times do I need to explain that to you?



He's babbling about acceleration, about which twin is
faster, etc when calculating two definite integrals solves the
problem.

He would likely congratulate you for finding the error that the one twin
made while critizing your reading ability.


Doubtful, given your inability to read some simple explanations.


I don't think he's teaching relativity (he teaches something else), he
is preocupied (and confused) about the twins' "paradox", he even
announced that he has "solved" it (!!!). Did you miss that?

Ah, now we're getting somewhere! That reference does not announce that he
has "solved" it. So my suspicion that you are projecting another article
onto this one is apparently correct.

The article is correct in your mind, that much is clear. For the rest
of us, it is clearly incorrect. Let me spell it out for you one last
time: Kak is attempting to compare proper times calculated in TWO
DIFFERENT frames of reference:

-the rocket twin as viewed from the Erath
-the Earth twin as viewed from the Sun

Now, do you understand why Kak's "paper" is wrong? Hopefullyneither hm
nor you teach relativity at any university.



Of course there are many solutions to
the twin paradox, addressing different issues.

Yes, there are many solutions, we agree on this one. Once you get the
problem statement correct (which kak didn't), it is easy to solve the
problem.


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