Re: [time-nuts] Coming to a drive-way near you: Optical Lattice clocks

2017-02-24 Thread Michael Wouters
I don't think it is transported under power - it is run as a frequency reference, not a time reference so there's no need to keep it running. Optical clocks are difficult to keep running continuously, 60% ( best done so far, if my memory can be trusted) uptime is considered to be very good. So that

Re: [time-nuts] Coming to a drive-way near you: Optical Lattice clocks

2017-02-24 Thread jimlux
On 2/23/17 10:49 PM, Poul-Henning Kamp wrote: In message <03067739-6291-4e37-831c-875022dbd...@n1k.org>, Bob Camp writes: I agree with their premise that to be useful you need transportable clocks. I’m not quite sure that something the size (and weight) of a pickup truck is really tra

Re: [time-nuts] Coming to a drive-way near you: Optical Lattice clocks

2017-02-24 Thread Bob Camp
Hi > On Feb 24, 2017, at 5:02 AM, Michael Wouters > wrote: > > On Fri, Feb 24, 2017 at 10:27 AM, Bob Camp wrote: >> Hi >> >> I agree with their premise that to be useful you need transportable clocks. >> I’m not quite sure >> that something the size (and weight) of a pickup truck is really

Re: [time-nuts] Coming to a drive-way near you: Optical Lattice clocks

2017-02-24 Thread Michael Wouters
On Fri, 24 Feb 2017 at 9:00 am, Poul-Henning Kamp wrote: > Have we talked about this yet ? > > https://arxiv.org/abs/1609.06183 > > https://arxiv.org/abs/1607.03731 > > > > -- > Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 > p...@freebsd.org | TCP/IP since RFC 956 > FreeBSD commit

Re: [time-nuts] Coming to a drive-way near you: Optical Lattice clocks

2017-02-24 Thread Michael Wouters
On Fri, Feb 24, 2017 at 10:27 AM, Bob Camp wrote: > Hi > > I agree with their premise that to be useful you need transportable clocks. > I’m not quite sure > that something the size (and weight) of a pickup truck is really > transportable. Yes one can > move it around (unlike a small mountain)

Re: [time-nuts] Coming to a drive-way near you: Optical Lattice clocks

2017-02-24 Thread Poul-Henning Kamp
In message <03067739-6291-4e37-831c-875022dbd...@n1k.org>, Bob Camp writes: >I agree with their premise that to be useful you need transportable clocks. >I’m not quite sure >that something the size (and weight) of a pickup truck is really >transportable. Yes one can >move it around (un

Re: [time-nuts] Coming to a drive-way near you: Optical Lattice clocks

2017-02-23 Thread Tim Shoppa
Well, I learned a new phrase. I can't wail until the chronometric-leveling-nuts list gets started! Tim N3QE On Thu, Feb 23, 2017 at 3:23 PM, Poul-Henning Kamp wrote: > Have we talked about this yet ? > > https://arxiv.org/abs/1609.06183 > > https://arxiv.org/abs/1607.03731 > > > > -- > Poul-Hen

Re: [time-nuts] Coming to a drive-way near you: Optical Lattice clocks

2017-02-23 Thread Bob Camp
Hi I agree with their premise that to be useful you need transportable clocks. I’m not quite sure that something the size (and weight) of a pickup truck is really transportable. Yes one can move it around (unlike a small mountain) …. Transporting something like that from here to Europe and b

[time-nuts] Coming to a drive-way near you: Optical Lattice clocks

2017-02-23 Thread Poul-Henning Kamp
Have we talked about this yet ? https://arxiv.org/abs/1609.06183 https://arxiv.org/abs/1607.03731 -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately