Re: [time-nuts] beaglebones, time, web services

2015-07-08 Thread Chris Albertson
The other complication with simple CGI BIN scripts is if you have multiple clients eating using their own browser. You have to manage cookies or track IP addresses. Or for a simple home server, just let thing fail if a second client starts making changes On Mon, Jul 6, 2015 at 7:24 PM, Jim Lux

Re: [time-nuts] US export regulations for TICs

2015-07-08 Thread Brian Inglis
On 2015-07-07 07:28, Attila Kinali wrote: As we need a need a proper TIC here to do our research, we are going to buy one from ebay form a seller in the US and let a friend who is in the US at the approriate time and can pick it up to bring it back in the plane. Now the big question is, are

Re: [time-nuts] beaglebones, time, web services

2015-07-08 Thread Brian Inglis
On 2015-07-04 07:13, Jim Lux wrote: I've got a project I'm working on to make a sophisticated sundial with moving mirrors. I've got a batch of Arduinos that move the mirrors to the appropriate places, given the current sun angle, etc. I've got a beaglebone that runs some python code to

[time-nuts] Leap graphs

2015-07-08 Thread Hal Murray
Google's time servers http://www.megapathdsl.net/~hmurray/time-nuts/leap/google-off-smear.png The blobs of dots off the line are due to bufferbloat. (I have a slow DSL line with almost 4 seconds of buffering.) Here is the output of a MR-350P when the GPS satellites first started

Re: [time-nuts] beaglebones, time, web services

2015-07-08 Thread Jim Lux
On 7/7/15 9:59 PM, Brian Inglis wrote: On 2015-07-04 07:13, Jim Lux wrote: I've got a project I'm working on to make a sophisticated sundial with moving mirrors. I've got a batch of Arduinos that move the mirrors to the appropriate places, given the current sun angle, etc. I've got a

Re: [time-nuts] LTC6957 internal architecture

2015-07-08 Thread Magnus Danielson
Hi Bruce, On 05/26/2015 01:39 AM, Bruce Griffiths wrote: The following patent hints that the LTC6957 front end probably consists of several cascaded long tailed pair differential amplifier stages each with a selectable bandwidth set by capacitors shunting the collector load resistors. :

[time-nuts] Reeeely long term HP 5065A drift rate (13 year!)

2015-07-08 Thread cdelect
Ooops, HP 5065A Spec is 1X10-11 per MONTH not a year as I had in the prior post! Corby ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

[time-nuts] Atomic clocks could be used to monitor volcanoes and predict eruptions

2015-07-08 Thread Brooke Clarke
Hi: Changes in gravity are detected by Cs clock rate changes using fiber optic time transfer to other stable clocks. http://www.gizmag.com/atomic-clocks-volcano-monitoring/38251/? Monitoring volcanoes with ground-based atomic clocks

Re: [time-nuts] US export regulations for TICs

2015-07-08 Thread Andrea Baldoni
On Tue, Jul 07, 2015 at 03:28:07PM +0200, Attila Kinali wrote: As we need a need a proper TIC here to do our research, we are going to buy one from ebay form a seller in the US and let a friend who is in the US at the approriate time and can pick it up to bring it back in the plane. Years

[time-nuts] Reeeely long term HP 5065A drift rate (13 year!)

2015-07-08 Thread cdelect
A few have volunteered for extended tests! Also got some info for a couple others: Unit 1 3.15X10-12/Year 12 years Unit 2 1.53X10-12/Year 13 Years Unit 3 7.12X10-12/Year 7 months so far Spec. is 1X10-11th per Year. Cheers, Corby ___ time-nuts