I was wondering how can I estimated the age of the Rubidium oscillator. I think the age is related to the lamp voltage but which voltage should I read ?

Shimkin, "Clock synchronization using maximal margin estimation" 2011 19th Mediterranean Conference on Control & Automation (MED), Corfu, 2011, pp. 1182-1187. https://doi.org/10.1109/MED.2011.5983128

I just stumbled over this sentence in [1]: ---schnipp--- The shift of the Rb-hyperfine center frequency νRb resulting from buffer gas pressure (2.6 kPa) is measured as 3390 Hz, this is in excellent agreement with theoretically estimated value of 3385 Hz.

phk@phk.freebsd.dk said: > I later talked to a geologist who knows the Danish underground well, and he > estimated I would have needed to drill to at least 25m depth to escape > seasonal temperature-changes and cited a research paper from the 1950'ies > where the did precisely that experiment.

These birds were on the same path (flying east to west) as the Canadas, following behind and this flock (hard for me to estimate but it had to be hundreds, probably thousands) continued for about 2 minutes as I continued to watch in awe.

I did my best to make conservative estimates of the number of birds based off of perceived duplication of calls, or lack thereof, within a given interval of about 40 seconds.

We also saw 1-2 BLACK TERNS and about 12 ROSEATE TERNS on the island- among an estimated 1600 COMMON TERNS. During the ride back to the dock, we found a ROYAL TERN resting on a small rock isle about 1/2 mouth south of the Guilford shoreline. Frank Mantlik Stratford Sent from my iPhone

I estimated 150 birds between 6:30 and 7:00 am.  When I left, there were a few birds still going through.  A few were in Ct. waters, but virtually all were in NY waters.  I had 1 Sooty Shearwater in NY waters and 1 Great Shearwater in CT waters.  It flew across the end of the point inside the breakwater. 

Huge push of Tennessee Warblers with atleast 13 being a conservative estimate, one ORANGE CROWNED warbler which put in a brief appearance unfortunately in a private residential area, 1 female Cape May, male BTBlue, FOS Hermit Thrush, White Crowned Sparrow, Blue Headed Vireo and numerous groups of PINE SISKINS.

Chuck Has anyone dealt with inclusionary zoning/workforce housing, and specifically, how to calculate an estimate of damages for non-compliance, or fees in lieu of compliance? What goes into creating a formula for these fees? Charles W. Thompson, Jr.