Re: [time-nuts] OCXO in 14DIP

2011-10-24 Thread Azelio Boriani
Wow, what has made you think that this list is intended to sell something?
Anyway, are you sure that an 14DIP OCXO suits your needs? What will drive
the EFC?

On Mon, Oct 24, 2011 at 3:50 AM, Geraldo Lino de Campos 
gera...@decampos.net wrote:

 I am in the time-nuts list, and  interested in buying 10 26 MHz OCXO.
 Payment by Paypal, shipping to Brazil by USPS, with tracking number.

 What will be the price? Do you have the full part number, including the EFC
 range?

 --
 
 Geraldo Lino de Campos
 gera...@decampos.net
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Re: [time-nuts] OCXO in 14DIP

2011-10-24 Thread WB6BNQ
Geraldo,

This list is not a place to order parts.  If you want to do that then look to
www.mouser.com or www.digikey.com as they are parts distributors.

If you are trying to ask a technical question, then please provide MUCH more
details as to your intended purpose and needs.  That way people can make
intelligent suggestions if they so desire.

BillWB6BNQ


Geraldo Lino de Campos wrote:

 I am in the time-nuts list, and  interested in buying 10 26 MHz OCXO.
 Payment by Paypal, shipping to Brazil by USPS, with tracking number.

 What will be the price? Do you have the full part number, including the EFC
 range?

 --
 
 Geraldo Lino de Campos
 gera...@decampos.net
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Re: [time-nuts] OCXO in 14DIP

2011-10-24 Thread Geraldo Lino de Campos
Sorry for the noise. The mail was intend to be private to peterl at
standingwave.org.

On Sun, Oct 23, 2011 at 11:50 PM, Geraldo Lino de Campos 
gera...@decampos.net wrote:

 I am in the time-nuts list, and  interested in buying 10 26 MHz OCXO.
 Payment by Paypal, shipping to Brazil by USPS, with tracking number.

 What will be the price? Do you have the full part number, including the EFC
 range?

 --
 
 Geraldo Lino de Campos
 gera...@decampos.net




-- 

Geraldo Lino de Campos
gera...@decampos.net
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[time-nuts] Neutrino timing

2011-10-24 Thread Marvin Marshak
Good morning,

Recently physicists using a neutrino beam from Geneva Switzerland to the Gran 
Sasso
in Italy have reported a measurement of neutrino velocity that is faster than 
the speed of
light. The effect over a 730 km path length is reported as 60 ns, which means 
that precise
timing is required at both ends of the beam to have sensitivity to this effect. 
The reported 
result, if true, has major implications for the fundamental understanding of 
physics. 
Thus, it is important to carry out independent checks of this measurement.

A similar beam exists between Fermi National Accelerator Lab in Batavia IL and 
the University
of Minnesota's Underground Laboratory at Soudan in northeastern Minnesota. This 
U.S. beam has
been used to make a similar measurement, but the GPS timing equipment that was 
used
(Truetime XL-AK, Model 600-101-015) resulted in an estimated uncertainty of 
about 70 ns 
in the neutrino time-of-flight, too large to test the recently reported effect. 
I am one of a 
group of physicists working with the neutrino beam in the U.S.

Although we are also talking with professionals at USNO and NIST, I am 
interested in possible
suggestions from the Time Nut community with respect to the following:

(a) the possibility of retrospectively improving the existing timing 
data recorded since 2005 using
the Truetime XL-AK, and
(b) a quick, low-cost improvement in the timing instrumentation that 
can be made right away, 
pending arrangements for techniques such as Two-Way Satellite synchronization.

In addition, if there are any Time Nuts in the Minnesota area who would like 
to get more involved in this project,
please feel free to contact me at mars...@umn.edu

Thank you very much.

Marvin Marshak


Marvin L. Marshak
College of Science and Engineering Professor
Morse-Alumni Professor
University of Minnesota
116 Church Street SE
Minneapolis MN 55455  612-624-1312 612-624-4578 (fax)





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Re: [time-nuts] Neutrino timing

2011-10-24 Thread Bob Camp
Hi

The quick and dirty way to improve the timing is pretty old school.

Toss a modern Cesium clock in the back of a car along with a bunch of
batteries. Drive it back and forth between Batavia and Soudan. If you drive
fast, that should be about an 8 hour trip. A good Cesium should hold 5 to
10X better than the GPS is now doing. 

Bob

-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Marvin Marshak
Sent: Monday, October 24, 2011 11:53 AM
To: time-nuts@febo.com
Subject: [time-nuts] Neutrino timing

Good morning,

Recently physicists using a neutrino beam from Geneva Switzerland to the
Gran Sasso
in Italy have reported a measurement of neutrino velocity that is faster
than the speed of
light. The effect over a 730 km path length is reported as 60 ns, which
means that precise
timing is required at both ends of the beam to have sensitivity to this
effect. The reported 
result, if true, has major implications for the fundamental understanding of
physics. 
Thus, it is important to carry out independent checks of this measurement.

A similar beam exists between Fermi National Accelerator Lab in Batavia IL
and the University
of Minnesota's Underground Laboratory at Soudan in northeastern Minnesota.
This U.S. beam has
been used to make a similar measurement, but the GPS timing equipment that
was used
(Truetime XL-AK, Model 600-101-015) resulted in an estimated uncertainty of
about 70 ns 
in the neutrino time-of-flight, too large to test the recently reported
effect. I am one of a 
group of physicists working with the neutrino beam in the U.S.

Although we are also talking with professionals at USNO and NIST, I am
interested in possible
suggestions from the Time Nut community with respect to the following:

(a) the possibility of retrospectively improving the existing timing
data recorded since 2005 using
the Truetime XL-AK, and
(b) a quick, low-cost improvement in the timing instrumentation that
can be made right away, 
pending arrangements for techniques such as Two-Way Satellite
synchronization.

In addition, if there are any Time Nuts in the Minnesota area who would
like to get more involved in this project,
please feel free to contact me at mars...@umn.edu

Thank you very much.

Marvin Marshak


Marvin L. Marshak
College of Science and Engineering Professor
Morse-Alumni Professor
University of Minnesota
116 Church Street SE
Minneapolis MN 55455  612-624-1312 612-624-4578 (fax)





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Re: [time-nuts] Neutrino timing

2011-10-24 Thread mike cook

Le 24/10/2011 19:03, Bob Camp a écrit :

Hi

The quick and dirty way to improve the timing is pretty old school.

Toss a modern Cesium clock in the back of a car along with a bunch of
batteries. Drive it back and forth between Batavia and Soudan. If you drive
fast, that should be about an 8 hour trip. A good Cesium should hold 5 to
10X better than the GPS is now doing.


Better to take three.

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Re: [time-nuts] Neutrino timing

2011-10-24 Thread paul swed
Boy I have to say that I agree with Bob. Nice and simple, but a boring drive
and heavens who has budgets for the tickets?
Looked at a map and though I could see either a dark fiber type connection
$, or radio at 400 miles. Transmitter reference at 200 miles could give
a common view. They grow really tall TV towers in the midwest. Certainly 50
MHz and reasonable power would be stable. I wonder about jitter in the
various technologies of the radio recvr. But with a CS/Rb ref. the system
could be quite good. Way back when ran a repeater at 145 Mhz for data with
directive antennas in Michigan. Ant at 60'. Very stable coverage at 140
Miles.
Regards
Paul
WB8TSL

On Mon, Oct 24, 2011 at 1:22 PM, mike cook michael.c...@sfr.fr wrote:

 Le 24/10/2011 19:03, Bob Camp a écrit :

  Hi

 The quick and dirty way to improve the timing is pretty old school.

 Toss a modern Cesium clock in the back of a car along with a bunch of
 batteries. Drive it back and forth between Batavia and Soudan. If you
 drive
 fast, that should be about an 8 hour trip. A good Cesium should hold 5 to
 10X better than the GPS is now doing.

  Better to take three.


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Re: [time-nuts] Neutrino timing

2011-10-24 Thread shalimr9
That will only work at the time you get there, which may not be the time of the 
experiment.

I think they need a more permanent solution.

Didier KO4BB


Sent from my BlackBerry Wireless thingy while I do other things...

-Original Message-
From: Bob Camp li...@rtty.us
Sender: time-nuts-boun...@febo.com
Date: Mon, 24 Oct 2011 13:03:58 
To: 'Discussion of precise time and frequency measurement'time-nuts@febo.com
Reply-To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Subject: Re: [time-nuts] Neutrino timing

Hi

The quick and dirty way to improve the timing is pretty old school.

Toss a modern Cesium clock in the back of a car along with a bunch of
batteries. Drive it back and forth between Batavia and Soudan. If you drive
fast, that should be about an 8 hour trip. A good Cesium should hold 5 to
10X better than the GPS is now doing. 

Bob

-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Marvin Marshak
Sent: Monday, October 24, 2011 11:53 AM
To: time-nuts@febo.com
Subject: [time-nuts] Neutrino timing

Good morning,

Recently physicists using a neutrino beam from Geneva Switzerland to the
Gran Sasso
in Italy have reported a measurement of neutrino velocity that is faster
than the speed of
light. The effect over a 730 km path length is reported as 60 ns, which
means that precise
timing is required at both ends of the beam to have sensitivity to this
effect. The reported 
result, if true, has major implications for the fundamental understanding of
physics. 
Thus, it is important to carry out independent checks of this measurement.

A similar beam exists between Fermi National Accelerator Lab in Batavia IL
and the University
of Minnesota's Underground Laboratory at Soudan in northeastern Minnesota.
This U.S. beam has
been used to make a similar measurement, but the GPS timing equipment that
was used
(Truetime XL-AK, Model 600-101-015) resulted in an estimated uncertainty of
about 70 ns 
in the neutrino time-of-flight, too large to test the recently reported
effect. I am one of a 
group of physicists working with the neutrino beam in the U.S.

Although we are also talking with professionals at USNO and NIST, I am
interested in possible
suggestions from the Time Nut community with respect to the following:

(a) the possibility of retrospectively improving the existing timing
data recorded since 2005 using
the Truetime XL-AK, and
(b) a quick, low-cost improvement in the timing instrumentation that
can be made right away, 
pending arrangements for techniques such as Two-Way Satellite
synchronization.

In addition, if there are any Time Nuts in the Minnesota area who would
like to get more involved in this project,
please feel free to contact me at mars...@umn.edu

Thank you very much.

Marvin Marshak


Marvin L. Marshak
College of Science and Engineering Professor
Morse-Alumni Professor
University of Minnesota
116 Church Street SE
Minneapolis MN 55455  612-624-1312 612-624-4578 (fax)





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Re: [time-nuts] Neutrino timing

2011-10-24 Thread Tom Van Baak

Although we are also talking with professionals at USNO and NIST, I am 
interested in possible
suggestions from the Time Nut community with respect to the following:

(a) the possibility of retrospectively improving the existing timing data 
recorded since 2005 using
the Truetime XL-AK, and
(b) a quick, low-cost improvement in the timing instrumentation that can be made right away, 
pending arrangements for techniques such as Two-Way Satellite synchronization.


In addition, if there are any Time Nuts in the Minnesota area who would like 
to get more involved in this project,
please feel free to contact me at mars...@umn.edu

Thank you very much.

Marvin Marshak


Hi Marvin,

Thanks for contacting the list about this.

We've discussed the topic somewhat a month ago, as well as a
number of emails off-list with the folks at CERN/LNGS.

NIST should be able to lend you one or two of their calibrated
common view systems. USNO has a traveling TWSTT van and
you can find out when it is next in the midwest. Let me know if
you need contact info for either lab.

How soon would you like to do the synchronization? Our kids
are in school right now but we have a Thanksgiving break soon.
Using the same clocks as http://leapsecond.com/great2005/ I
can calibrate the MINOS path to 2 ns.

/tvb



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Re: [time-nuts] Neutrino timing

2011-10-24 Thread Attila Kinali
On Mon, 24 Oct 2011 10:52:51 -0500
Marvin Marshak mars...@umn.edu wrote:


 A similar beam exists between Fermi National Accelerator Lab in Batavia IL 
 and the University
 of Minnesota's Underground Laboratory at Soudan in northeastern Minnesota. 
 This U.S. beam has
 been used to make a similar measurement, but the GPS timing equipment that 
 was used
 (Truetime XL-AK, Model 600-101-015) resulted in an estimated uncertainty of 
 about 70 ns 
 in the neutrino time-of-flight, too large to test the recently reported 
 effect. I am one of a 
 group of physicists working with the neutrino beam in the U.S.
 
 Although we are also talking with professionals at USNO and NIST, I am 
 interested in possible
 suggestions from the Time Nut community with respect to the following:

I and probably most others are not familiar with your measurement setup.
Could you at least provide a link to a paper that describes how your
time transfer/synchronisation setup looks like?

Also, what data have you recorded during your experiments?
What of this data is still available?

   (a) the possibility of retrospectively improving the existing timing 
 data recorded since 2005 using
 the Truetime XL-AK, and

I currently only see one possibility to improve the timing data if you have
recorded the satelite phase data at both sites with each time stamp.

I know that with this, you can get a damn good precision in positioning
(a group at the ETH in Zürich uses this to get sub cm positioning with
standard LEA6-T modules, without any assisting technologies). I'm quite
sure this could be translated to timing presission as well.

   (b) a quick, low-cost improvement in the timing instrumentation that 
 can be made right away, 
 pending arrangements for techniques such as Two-Way Satellite synchronization.

Without knowing your exact setup, it's hard to say. But first i'd try to
improve the oscilator stability in the XL-AK (ie use a rubidium). Maybe
it would also need a firmware change to really make use of this enhancement.

Attila Kinali

-- 
It is upon moral qualities that a society is ultimately founded. All 
the prosperity and technological sophistication in the world is of no 
use without that foundation.
 -- Miss Matheson, The Diamond Age, Neil Stephenson

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Re: [time-nuts] Neutrino timing

2011-10-24 Thread WarrenS

I have a more basic time-nut question.  Why is it a problem at all?
How can the time uncertainty between two known and fixed locations be that 
large?


If they know they have a 70ns uncertainty in time, that would suggest that 
their time measurement is known to be varying at one or both places.
Is this just from a spec or do they see a true variation in time between 
something, and if so compared to what?
Is this time difference or variation between several difference timing 
devices at each end or is it variation when compared to time of flight of 
the supposedly same neutrinos?


I can not say anything about the accuracy of my absolute time, but the 
difference and uncertainly comparing the phase difference between different 
external  Osc Tbolts at the same location is way way under 70ns.
Sure lots of BASIC things to do to make sure the two Tbolts are set the same 
so that their oscillator's phase do they agree, such as using the same type 
antenna and same cable and length, and getting the antenna's location 
correct, etc, etc,
but basic stuff and seems like if using the same basic GPS system at two 
different locations, what would the additional problems be except to make 
sure both ends are syncing on the same 100ns 10MHz cycle.


I was under the impression that getting down to ns uncertainly differences 
(and staying there) at theses distances is old stuff using common view GPS.

So what are the problems that cause their large timing uncertainty?

ws
*

Good morning,

Recently physicists using a neutrino beam from Geneva Switzerland to the 
Gran Sasso
in Italy have reported a measurement of neutrino velocity that is faster 
than the speed of
light. The effect over a 730 km path length is reported as 60 ns, which 
means that precise
timing is required at both ends of the beam to have sensitivity to this 
effect. The reported
result, if true, has major implications for the fundamental understanding of 
physics.

Thus, it is important to carry out independent checks of this measurement.

A similar beam exists between Fermi National Accelerator Lab in Batavia IL 
and the University
of Minnesota's Underground Laboratory at Soudan in northeastern Minnesota. 
This U.S. beam has
been used to make a similar measurement, but the GPS timing equipment that 
was used
(Truetime XL-AK, Model 600-101-015) resulted in an estimated uncertainty of 
about 70 ns
in the neutrino time-of-flight, too large to test the recently reported 
effect. I am one of a

group of physicists working with the neutrino beam in the U.S.

Although we are also talking with professionals at USNO and NIST, I am 
interested in possible

suggestions from the Time Nut community with respect to the following:

(a) the possibility of retrospectively improving the existing timing data 
recorded since 2005 using

the Truetime XL-AK, and
(b) a quick, low-cost improvement in the timing instrumentation that can be 
made right away,
pending arrangements for techniques such as Two-Way Satellite 
synchronization.


In addition, if there are any Time Nuts in the Minnesota area who would 
like to get more involved in this project,

please feel free to contact me at marshak at umn.edu

Thank you very much.

Marvin Marshak 



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[time-nuts] re Nutrino Timing

2011-10-24 Thread Stephen Farthing
I thought I might share this with you :-

Barman Sorry sir, we don't serve nutrinos here...!

A nutrino walks into a bar...

;-)

Steve


-- 
RIP Dennis Richie, I'm sure you will still be cutting code somewhere out
there in the universe. You gave the world C and taught me a lot.
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Re: [time-nuts] Neutrino timing

2011-10-24 Thread Magnus Danielson

Ed,

On 10/25/2011 12:07 AM, ed breya wrote:

I am not familiar with the experiment, so I have to ask some dumb
questions:

First, I wonder how the beam is generated at the source, and then
detected at the receiving end, and how the launch and arrival events are
determined with high certainty in the first place. I assume the
neutrinos come from a nuclear or particle accelerator reaction, and are
produced either randomly or on demand. If they are random, then their
existence and direction must be detected as the start event, but if
produced on demand, then the start time is known and controlled. If the
latter is true, then maybe the beam itself can be modulated somehow to
carry some of the desired time and frequency information, or otherwise
help to improve the measurement. I assume that it must already be
controlled to some extent in time and amplitude in order to see an
effect above the background level at the detector.


Do read the article in question. You would love to see the graphs and 
texts. It's quite readable.


The SPS produces 400 GeV/c protons which is extracted by a kicker magnet 
in two 10,5 us long bursts, 50 ms apart. See page 4 of 1109.4897v1.


http://arxiv.org/abs/1109.4897

Contol is well timed with the Xli GPS receiver.

Cheers,
Magnus

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Re: [time-nuts] Russian GPSDO

2011-10-24 Thread k4...@aol.com

Attila,

I finally got around to reading the uBlox application note on their GPS  
receiver made specifically for timing.  Did I miss it or do they not offer  
TRAIM in their receiver?  I can't believe they would claim it to be for  
timing without TRAIM capability.  Regards, Doug, K4CLE


Connected by DROID on Verizon Wireless

-Original message-
From: Attila Kinali att...@kinali.ch
To: Discussion of precise time and frequency measurement  
time-nuts@febo.com

Sent: Sat, Oct 22, 2011 09:03:40 GMT+00:00
Subject: Re: [time-nuts] Russian GPSDO

On Fri, 21 Oct 2011 14:47:43 -0400 (EDT)
saidj...@aol.com wrote:


Hi Attila,


In a message dated 10/20/2011 22:28:19 Pacific Daylight Time,  
att...@kinali.ch writes:


 That's  also my impression. It was only after i had a longer
 discussion with one of  the user support guys about the exact
 specs of the 6T that they measured  and provided a document
 with more than just we have 12ns jitter. Though  the document
 is still not what i expect, it's infinitely better than  before.



please share the document with us.


Oh, it's easy to find in the appnotes section on the ublox homepage:

http://www.u-blox.com/images/downloads/Product_Docs/Timing_AppNote_%28GPS.G6- 
X-11007%29.pdf


BTW: if someone who has a better understanding of timing issues could
provide a list on how to improve that appnote, i'd be happy to contact
ublox and work with them to get us more and better information.



Attila Kinali
--
It is upon moral qualities that a society is ultimately founded. All 
the prosperity and technological sophistication in the world is of no 
use without that foundation.

-- Miss Matheson, The Diamond Age, Neil Stephenson

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Re: [time-nuts] Neutrino timing

2011-10-24 Thread Hal Murray
 Sounds like a good excuse to build a moon base...

Think big.  The experiment has been done over 168,000 light years.
  http://en.wikipedia.org/wiki/Supernova_1987A

The neutrinos got here 3 hours before the light.  (Empty space isn't really 
empty.  The dielectric constant slows the light down a tiny tiny bit.)



-- 
These are my opinions, not necessarily my employer's.  I hate spam.




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Re: [time-nuts] Neutrino timing

2011-10-24 Thread Justin Pinnix
If I'm doing my math right, the supernova is a 2.03e-9
discrepancy(3/24/365/168000).  CERN's discrepancy was 2.464e-5
(60e-9/2.435e-3) That's nearly 4 orders of magnitude more dramatic.
Thanks,
-JP
On Mon, Oct 24, 2011 at 10:06 PM, Hal Murray hmur...@megapathdsl.netwrote:

  Sounds like a good excuse to build a moon base...

 Think big.  The experiment has been done over 168,000 light years.
  http://en.wikipedia.org/wiki/Supernova_1987A

 The neutrinos got here 3 hours before the light.  (Empty space isn't really
 empty.  The dielectric constant slows the light down a tiny tiny bit.)



 --
 These are my opinions, not necessarily my employer's.  I hate spam.




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Re: [time-nuts] Neutrino timing

2011-10-24 Thread Tom Van Baak

Think big.  The experiment has been done over 168,000 light years.
 http://en.wikipedia.org/wiki/Supernova_1987A

The neutrinos got here 3 hours before the light.  (Empty space isn't really 
empty.  The dielectric constant slows the light down a tiny tiny bit.)


Hal,

Ah, you're assuming the neutrinos came out of the supernova at
the same time as the light. I've read that this is not the case. By
their nature neutrinos can make it out of that explosion immediately
but it takes a while for the light or other particles to migrate their
way out from the core. In which case you would expect to see
the neutrinos first.

This applies to time interval measurement too. The best way to
measure interval is use two equivalent detectors; one near and
one far, but both away from the source. That way you get two
fair in-flight measurements. Using some implied internal trigger
and just one far detector may give misleading results.

/tvb


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Re: [time-nuts] Neutrino timing

2011-10-24 Thread Chris Albertson
My bet is on an experimental error.  That is the safe bet.  I hope I
loose because this being real faster than light neutrinos would be a
lot of fun.

If true my off the cuff guess is that this proves the existence of
dimensions higher than four.  These are tiny and some closed shape.
most mater takes some long path through these and all the particles
that do interact, neutrinos don't take the long path and thereby
miss most mater and don't interact with it.  Either they don't move
in that dimension or they take a bee-line

Under special relatively the speed of all particles is a constant, C
(This is why nothing can exceed C because everything in the universe
moves at constant speed (not constant velocity) of C.  If the
Neutrinos really are fast then my guess is that the constant C holds
in more than four dimension.  So this result would not disprove
Einstein, it would generalize the theory to n4 dimensions.

The neutrinos, like every other particle pin the universe are moving
at exactly C through 10-space.  (OK I guessed at the number 10 but
n-space where n4)


I think this has to be the simplest possible explanation.  Short path
through dimensions  4 explains both the apparent faster than light
speed (that is not faster than C in n-space) and why neutrinos don't
interact with matter very much.  I'm sure I'm not the first to think
of this.  It fall out obviously if you let N be  4

On Mon, Oct 24, 2011 at 6:06 PM, ed breya e...@telight.com wrote:
 Fascinating stories. It looks like they covered all the bases, so if
 correct, then it should have a big impact on physics. I can only conclude
 one of the following:

 1. There is some undiscovered measurement error or effect that accounts for
 the discrepancy.
 2. The data are correct and the neutrinos can exceed c, or distort
 space-time so that it appears that way.
 3. Neutrinos actually do interact with matter more than supposed, and in
 unusual ways. This would mean that rock would have a negative index of
 refraction to neutrinos.

 It's too bad the equipment has to be gigantic. If the beam line could be
 built vertically, it could be fired through the entire earth instead, to a
 detector on the opposite side, getting about sixteen times more distance. I
 wonder what the beam dispersion is for those things.

 Ed


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-- 

Chris Albertson
Redondo Beach, California

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