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From: "Paul.B.Andersen" <relativity@paulba.no>
Newsgroups: sci.physics.relativity
Subject: Re: Muon paradox
Date: Sat, 5 Apr 2025 11:32:25 +0200
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Den 04.04.2025 23:15, skrev LaurenceClarkCrossen:
> On Fri, 4 Apr 2025 12:55:38 +0000, Paul.B.Andersen wrote:
>>
>> A muon has a mean lifetime = 2.2 μs in its rest frame.
>> The same muon, at the same time, has a mean lifetime 85.36 μs
>> in the Earth-frame.
>>
>> Time dilation is the phenomenon that the measured time
>> between two events on an object's world-line depend
>> on the frame of reference in which it is measured.
>>
>> The 2.2 μs and 85.36 μs are two different times between
>> the same two events on the same muon.
>> The difference is that the two times are measured in two
>> different frames of reference.
>>

> The muons move ten times further down in Earth's atmosphere than they
> are expected to from measurements in the laboratory of their lifetimes
> and speeds. This is not a matter of perspective or reference frames.

The "time dilation" is exactly as expected and predicted by SR.

> 
> You have proven unable to even attempt to explain the cause of the time
> dilation of the muons coming from high in Earth's atmosphere according
> to relativity.

Didn't you read the above?

So read it now:

A muon has a mean lifetime = 2.2 μs in its rest frame.
The same muon, at the same time, has a mean lifetime 85.36 μs
in the Earth-frame.

Time dilation is the phenomenon that the measured time
between two events on an object's world-line depend
on the frame of reference in which it is measured.

The 2.2 μs and 85.36 μs are two different times between
the same two events on the same muon.
The difference is that the two times are measured in two
different frames of reference.


> 
> Time dilation is not a phenomenon.

Call it whatever you want.

"Time dilation" as predicted by SR is _proven_ to exist.

> 
> You conflate longer lifetimes with time dilation.

It is still meaningless to say that muons live longer than themself.

REPEAT:
The muon has but one life. It is this one life that
is 2.2 μs when measured in the rest frame of the muon,
and  85.36 μs when measured in Earth-frame.

You seem to have a serious reading comprehension problem.

So I will repeat it again if you still haven't got it.

-- 
Paul

https://paulba.no/