The most important reason is that the frequencies of optical clocks can be very different, from ultraviolet to infrared.
When the frequency of one clock is 10 times greater than the frequency of another, it is hard to find a significance for any other kind of mean, except the geometric.
More clearly, if the input frequencies have the same relative uncertainty, the geometric mean will preserve that relative uncertainty. If the input frequencies have different relative uncertainties, the geometric mean will have a relative uncertainty that is intermediate between them.
Other kinds of means do not offer guarantees about the relative uncertainty when the ratio of the inputs is high. If one frequency is much bigger than the others, the arithmetic mean will depend only on that frequency, the others will not matter.
In this very interesting video, a Russian drone developer gives his thoughts about laser weapons. In theory they work, they test it always on ideal atmospheric conditions. In practice, they don't.
I was able to buy some groceries and pay with card. The tills had a battery backup and the network infrastructure that supports card payments was apparently working.
That said, lots of people hit the cafés and had to resource to cash payments. There was also lots of people buying bottled water at the shops.
So basically, you could divide people in two groups. Those that took it like an extra Sunday, and those that took it like the beginning of a war or something :-D
Most people around here seemed to be balanced. Yes, a lot of people outside at bars/cafes enjoying a spare Sunday, but also preparing quietly and slowly in case it takes longer time. All the stores ran out of batteries, radios and such, at least the ones we visited, and I only managed to make one card payment around 13:30 sometime, after that internet stopped working 100% until the night. Almost no super markets were open around here, maybe one or two who had generators it seems.
Haha, naming is always a pain either way... I remember we used to use some ERM software named ISIS, this is before the Isis became infamous. After months of getting bombarded with news on the terrorist group, having to ask questions like "can you check on Isis?" became an interesting affair.
Heh. Even more funny than that is that ISIS was the name of a classified intel sharing network around the same time that Osama Bin Laden took out the WTC.
I remember doing this when I was working for Sun Microsystems. We had to install Solaris in a quite large number of Sun computer for a big client and we did all of them with tftp.
It's very cool. Getting a couple racks of new servers and installing all of them from your desk without any interaction is very enjoyable.
I also love installing/cabling servers, but not needing to leave your desk to (re)provision hardware is pretty life changing. Considering your desk can be anywhere around the world due to work travels.
Are you the poor Unix system administrator at Sun with the Worst Job in the World, who had to install Solaris on Scott McNealy's and Ed Zander's and other VP's workstations?
The Worst Job in the World, from Michael Tiemann <tiemann@cygnus.com>:
PS: Fuck Trump supporting anti-vaxer Scott "You have zero privacy, get over it" McNealy. May he run Solaris in hell. If you installed it on him, then good for you, he deserved it!
Scott McNealy has long been one of Trump’s few friends in Silicon Valley:
Former Sun Micro CEO Scott McNealy, known for his provocative quotes, says Trump is doing a 'spectacular job' amid the coronavirus crisis. That's not how many tech experts see it:
