On Aug 26, 6:08 pm, mluttgens wrote in sci.physics.relativity:
> The cosmic muons paradox
> _______________________
>
> In special relativity, the time dilation effect is reciprocal:
> as observed from the point of view of either of two clocks
> which are in motion with respect to each other, it will be
> the other clock that is time dilated.
> (cf.http://en.wikipedia.org/wiki/Time_dilation)
>
> Fromhttp://www.mth.uct.ac.za/omei/gr/chap1/node9.html:
>
> "A very interesting example of the slowing down of time
> is that of the cosmic ray muons . These are particles that
> disintegrate spontaneously after an average lifetime of about
> 2.2 microseconds. It is clear that in its short lifetime a muon
> cannot, even at the speed of light, travel more than 600 m.
> But although the muons are created at the top of the atmosphere,
> some 10 km up, we can detect them down here on earth. How
> can that be!!? From the muon's point of view (i.e.from their frame
> of reference) they only live about 2 microseconds. However from
> our point of view they live considerably longer, indeed long enough
> to reach the surface of the earth (by a factor f = 1/sqrt(1-v^2/c^2)."
>
> According to SR, the lifetime of the muons moving at v relative
> to the Earth's surface is dilated by f according to the Earth
> observer. Experimentally, this is a real effect.

It isn't. Einsteiniana's most pernicious hoax is undoubtedly the muon hoax. It is based on measuring the lifetime of muons "at rest". When cosmic-ray muons bump into an obstacle so that their speed instantly changes from about 300000km/s to zero, their forced and quick disintegration makes Einsteinians sing "Divine Einstein" and go into convulsions. Why? Simply because in the era of Postscientism human rationality is so devastated that, while the muon undergoes such a terrible crash, Einsteinians safely declare that in fact this muon is "at rest" and, being "at rest", disintegrates more quickly than another muon which is not "at rest", in perfect accordance with Divine Albert's Divine Theory:

http://websci.smith.edu/~pdecowsk/muons.html
"The purpose of this experiment is to measure life time of muons decaying at rest. Muons, produced in the atmoshere bombarded by high energy cosmic radiation, are passing through the system of two detectors located one above the other one. A coincidence of signals from these two detectors (signals occuring in both detectors within 100ns) marks a particle entering the muon telescope from above and serves as a filter rejecting many noninteresting signals from background radiation. Some particles, with appropriate energies, will end their flight in the lower detector (proper amount of lead between both detectors ensures that many of them will be muons). If a stopped particle is muon, it will decay after some time producing electron. The time interval between signals from the muon entering the lower detector and the electron emerging after its decay is converted by a time-to-amplitude converter into amplitude of signal fed to the CAMAC analog-to-digital converter (ADC) controlled by the computer. The spectrum of time intervals is displayed in the figure below. The expected distribution should be exponential with the exponential time constant being the average life time of muon. The full range of the spectrum (about channel 2000) corresponds to the time interval of about 25 microsecond. There are not many muons with such energies that they will end their path exactly in the lower detector (usually they will pass both detectors and will be stopped in somewhere in the ground), so counting rate is rather low. To collect a reasonable number of events, the experiment has to be run a number of days."

Pentcho Valev
pvalev@yahoo.com

According to PV it is just by chance that the measurements on the muon decay are in agreement with the relativistic time dilation factor.
What an old fart!

If you want to learn something better read this for example:

http://arxiv.org/PS_cache/physics/pdf/0502/0502103v1.pdf

In this reference, the equation (2) tells it all: it is possible to extract the effect of time dilation because it induce a clear deviation from the usual BeerLambert law. Experimental data and understanding should prevail.

There are of course many historical papers on this topic.
It is up to you to beat PV on google.

Big deal. They "prove" their hypothesis with an a priori motive in the design. It is your gut that has achieved an overpressure with the atmosphere.

PMTs cannot measure one "photon." They "amplify" an event by producing a cascade of "photons." The arrival of the "Muon" and it's "scintillation" all happen in nearly the same instant. Rather than "time dilation," the event is an example of "time contraction"

There is no paradox.

Anonymous said: "Rather than "time dilation," the event is an example of "time contraction"

Jose says: This Anonymous can actually think! Wow, the "Cement Process Engineer Anonymous" should take note!

Utter stupidity:

"PMTs cannot measure one "photon." They "amplify" an event by producing a cascade of "photons." "

There is almost no measurement in physics that doesn't involve an amplifier of some sort.
Those who have some laboratory experience will agree.

I worked in plasma physics, and I have bought maybe 20 amplifiers for my experiments, not including those built in oscilloscopes, spectrum analyzers and other common devices.

I work now in the cement industry and I can confirm that most measurements also involve an amplifier.
Gas temperatures, gas velocities, gas compositions, dust loads of gases, kiln shell temperature maps, clinker analysis by XR fluorescence, mineralogy by XR diffraction, gas or solid moistures, differential thermal analysis, biomass content by C14, on-line prompt gamma neutron activation analysis, colorimeters, ...
All these measurements involve amplifiers.

Even the a simple mercury thermometer involves a mechanical amplification by the geometry of the bulbe and the capillary.
Does that mean that the classic thermometer cannot measure a temperature?

Only idiots posting here can write such nonsense:

"PMTs cannot measure one "photon." They "amplify" an event by producing a cascade of "photons." "

These same idiots and their supporters, like JR, who are not able to say anything sensible will also complain about the current status of physics!
They should first go back to secondary school.
(sorry to be offending for the kids)

Yeh, they should all go back to the same school you attended and become idiots like you

I see that you recognized your personal reading track.
I will make sure there is always a few words for you.

The intelligent information in my post were reserved for those few sensible readers passing by.

"And so are the posts by the cement process engineer that can't tell French from Latin. "

In Internet slang, a troll is someone who posts controversial, inflammatory, irrelevant or off-topic messages in an online community, such as an online discussion forum, chat room or blog, with the primary intent of provoking other users into an emotional or disciplinary response[1] or of otherwise disrupting normal on-topic discussion.

http://en.wikipedia.org/wiki/Troll_(Internet)

"PMTs cannot measure one "photon." They "amplify" an event by producing a cascade of "photons." "

You cannot prove that one, two, or no photons set the cascade off. All one can say is that enough energy arrived to start the cascade.

And so the posts, by the cement process engineer that can't tell French from Latin, are just his foolish opinion, and his childish prattling.

In Internet slang, a troll is someone who posts controversial, inflammatory, irrelevant or off-topic messages in an online community, such as an online discussion forum, chat room or blog, with the primary intent of provoking other users into an emotional or disciplinary response[1] or of otherwise disrupting normal on-topic discussion.

http://en.wikipedia.org/wiki/Troll_(Internet)

Cement guy:

If you stopped for an instant and read up about how the most basic semiconductor works, rather than an analog example of a thermometer you may realise your error. To put it simply, you dont put one electron into an amplifier and get a "bigger" electron out.

Guiri (IEEE certified)

As far as the "official" relativist reponse to the muon paradox.
The Muon in its frame of reference is "length contracted" and the observer is "time dilated" but heres the kicker none of them both length and time. Sounds like spooky action at a distance to me, how does the Muon decide which one?.

Absolute trash.

How does the Muon decide which one?

Cement Head uses mental telepathy to tell the muon to open the box with the cat in it and see whether it is dead or alive.

This is such an important topic and you guys are in a mosh pit.

a