Re: How long is a muon when at rest?

Arthur Dent:
>I do not believe that muons are 29 meters long, and so I accept your
>suggestion.

Then what's the problem?

>However, I do accept the definition speed = distance/time
>as a definition.

So what? That is a rather commonly accepted definition.

>This is contradictory to Einstein's definition of
>time, i.e. the time for light to travel from A to B is equal to time it
>travels from B to A. As you correctly point out, one of these
>statements is ridiculous.

There's no contradiction, so the only thing which is ridiculous is
trying to argue that there's a contradiction. If you want to argue
that there's a contradiction, then you need to go to a math newsgroup
and argue that there's no such thing as the slope of a line.

>The event of the light leaving A,
>the event of the light reflecting at B and
>the event of light arriving back at A
>are four events, not three, surely, since we are unable to determine
>the location of A in the stationary frame and in the moving frame. It
>is this difficulty that I was hoping someone would resolve.

If you were hoping someone would resolve it, then why do you
misconstrue what people write and why do you take every opportunity
to be contrary for the sake of being contrary?


>I'm sorry that I have not said anything in response to your original
>reply, but unfortunately your original reply did not address my
>orginal and perhaps poorly phrased question.

You asked how ``long'' a muon is and I answered that question.
You made something up that bore no relation to anything I said and
then attributed what you made up to me.


.

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