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Author Topic:   Einstein is rolling over in His Grave, or Cern makes a big mistake
RAZD
Member (Idle past 1427 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 5 of 74 (634584)
09-22-2011 9:54 PM
Reply to: Message 2 by cavediver
09-22-2011 5:39 PM


Hi cavediver,
Probably not, ...
... but a possibility.
... but I still wouldn't say that "Cern makes a big mistake". ...
It's not a major con-Cern, but I agree that the caution and the request for independent verification is the proper course to take.
Enjoy.

we are limited in our ability to understand
by our ability to understand
Rebel American Zen Deist
... to learn ... to think ... to live ... to laugh ...
to share.


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This message is a reply to:
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RAZD
Member (Idle past 1427 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


(1)
Message 14 of 74 (634732)
09-23-2011 3:18 PM


humour
xkcd: Neutrinos
Enjoy

we are limited in our ability to understand
by our ability to understand
Rebel American Zen Deist
... to learn ... to think ... to live ... to laugh ...
to share.


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Replies to this message:
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RAZD
Member (Idle past 1427 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 19 of 74 (635440)
09-29-2011 8:39 AM
Reply to: Message 8 by cavediver
09-23-2011 2:26 AM


so why not just change the speed of light?
Hi cavediver,
What I don't understand is why the speed of light is not adjusted to this new experimental result. All previous experiments on the speed of light have resulted in adjustments to the known value, adding greater precision: why is this different?
CERN Explains The Big Fuss Over 'Neutrino' Findings
quote:
... And what they appear to be measuring is that the neutrinos are arriving early. Only very slightly early -- it's a 20 part per million effect, but early nevertheless.
It would still have the neutrinos arriving earlier than photons from supernova, wouldn't it?
What does that do to current understanding?
If I had to bet on the outcome I would (a) not be surprised that this was confirmed, and (b) expect that the "answer" explanation is to adjust the speed of light.
Enjoy.

we are limited in our ability to understand
by our ability to understand
Rebel American Zen Deist
... to learn ... to think ... to live ... to laugh ...
to share.


Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click)

This message is a reply to:
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 Message 24 by nwr, posted 09-29-2011 12:06 PM RAZD has seen this message but not replied
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 Message 28 by cavediver, posted 09-29-2011 3:33 PM RAZD has replied

  
RAZD
Member (Idle past 1427 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 21 of 74 (635456)
09-29-2011 10:30 AM
Reply to: Message 20 by kbertsche
09-29-2011 10:27 AM


but do you c what I c?
Hi kbertsche,
But if a particle moves faster than light, it is possible to transform to a reference frame where the particle is destroyed before it is created.
But if this new experimental result is just a refinement of the actual speed of light what happens?
Enjoy.
Edited by Zen Deist, : subtitle

we are limited in our ability to understand
by our ability to understand
Rebel American Zen Deist
... to learn ... to think ... to live ... to laugh ...
to share.


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This message is a reply to:
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RAZD
Member (Idle past 1427 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 29 of 74 (635535)
09-29-2011 5:03 PM
Reply to: Message 28 by cavediver
09-29-2011 3:33 PM


So what is different?
Hi cavediver
RAZD is still fine.
Yep, by 20 parts per million. So over a journey of 168,000 years (SN1987A is 168,000 light years away), the neutrinos would arrive 3 years early, not 3 hours early as observed.
Good ol' SN1987A!
Everyone else seems to have covered this. c is just too well measured for any adjustment at this scale. The precision to which c is known is critical in the construction and operation of the LHC and all similar hardware.
Message 22 kbertsche: This would avoid the problems, but it's not possible. The speed of light has been measured to high precision in multiple experiments. It can't be in error by 2 parts in 10^5.
Message 25 NoNukes: I would be quite surprised if this were the answer. The speed of light is known to an extremely high accuracy; the uncertainty is a few parts per billion.
Given the inherent difficulties in even detecting neutrinos, it seems very unlikely that we would be able to determine the speed of light in a vacuum more accurately by measuring the speed of neutrinos than by measuring the propagation speed of e-m waves which are extremely easy to detect.
So if c is accurate to 2 parts in 10^9, the delta observed is like 10,000 (1x10^4) times the current uncertainty in measured c? Okaaaay.
So we have light, e-m waves and neutrinos -- what is different?
Do neutrinos travel faster inside gravity wells? Is there a slight relativistic effect due to being sent through the earth? Or is there some tunneling phenomena that is happening here?
Presumably they've checked the distance to the same accuracy.
Thanks everyone.
Enjoy.

we are limited in our ability to understand
by our ability to understand
Rebel American Zen Deist
... to learn ... to think ... to live ... to laugh ...
to share.


Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click)

This message is a reply to:
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RAZD
Member (Idle past 1427 days)
Posts: 20714
From: the other end of the sidewalk
Joined: 03-14-2004


Message 31 of 74 (635545)
09-29-2011 5:48 PM
Reply to: Message 30 by AZPaul3
09-29-2011 5:18 PM


Re: Let's Speculate some more
Hi AZPaul3
Thanks, that makes sense:
If we are measuring departure time from the peak production max point in the starting bell curve, and the arrival time from the peak detections max point in the arrival bell curve ...
AND the arrival bell curve is significantly smaller (both lower and thinner) than the departure bell curve ...
THEN it could logically be displaced anywhere along the range of the departure that it fits under the departure bell curve and still be a sampling of the departed neutrinos.
              __
/ \
/ \
/ \
/ \
/ \
/ _ \
/ / \ \
_ / _ / \ _ \ _
It could be earlier, it could be later, or it could be about the same time.
One test for this would be the spread of the detected bell curve -- if it is the same width as the production bell curve, then we could assume that it is random sampling from the production of neutrinos, whereas if it is narrower then that could indicate biased sampling.
And given that the result has been repeated quite a number of times already, that would be another indicator of bias in the sampling.
* The questions then become (a) what makes one type of neutrino more detectable than another type of neutrino and (b) how do they become sorted in this test.
** This could also be tested by varying the distance between production and detection: if the variation is constant it likely indicates bias but if it varies with distance then not so likely.
Enjoy.
Edited by Zen Deist, : questions
Edited by Zen Deist, : *'s added by edits * and **

we are limited in our ability to understand
by our ability to understand
Rebel American Zen Deist
... to learn ... to think ... to live ... to laugh ...
to share.


Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click)

This message is a reply to:
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