. > > You can change up the batteries for more runtime, but real cheap UPS > will overheat and die. They were not designed for steady state > operation. > > That is the problem with the cheaper APC. They were designed for 5 or > 10 mins at max power.

I don't have a big sample to speak from, but the Trimbles I use only have a couple of ceramic coated pieces, and those can be exposed down to the die by hand and then characterized, can't they?

>>> >> Building my own Rb vapor cell standard or H-maser is on my list >> of Things-I-have-to-do-before-I-die :-) >> >> If I had to do one of those now, I would go for a Rb vapor cell >> with dual-resonance using an external cavity laser diode for pumping. >> >> The electronics for such a thing are relatively easy, if you are not >> afraid of Jiga-Hurts and using

Most of the "OMG IF WWV GOES AWAY MILLIONS WILL DIE" posts (elsewhere, not here ... quite ...) are the type of hysteria that is usually reserved for, I don't know, the EMP folks. :-) > As for solar flares taking out the various GNSSs ... wouldn't a solar > flare only take out the vehicles that were on the "sunny" side of the > Earth?

. > The gotcha is that an IC is die coated and a MEMS oscillator likely is > not.

Trantham" writes: >Just to make sure I understand, since they are all DALLAS chips (two >DS1230Y-150 for 'program memory', and a DS1220Y-150 for 'cal memory'), with >their internal batteries, they all will die in the future and that 'memory >of programs' function will be lost.

. > > When you cal a 3458A the first step is to short the inputs and wait for > the > > thermals to die.

But the milkweed is starting to die off. Plus the evenings are getting cooler. I didn't find any definitive information regarding what temperatures they can endure or, what happens when the milkweed supply is gone. They're pretty large and plump now, but it seems like there may not be enough time for them to make a chrysalis , and then migrate.

Menhaden (bunker) sometimes die off in hot weather. On Fri, Jul 10, 2020 at 2:10 PM Richardson, Valerie via CTBirds > wrote: I live on the Quinnipiac, and I'm seeing dead fish floating up-river with the incoming tide--about a half dozen so far, spaced out about five minutes apart.

He did die right where he was standing but it took too > long, not a humane kill. Lesson learned. > > And today I read some warnings during my net searching about it getting > into the cracks and crannies in printed stuff and delaminating it > gradually. Both that and the finely milled graphites carry the same > warnings, saying don't use.