nanog mailing list archives
Re: F-ckin Leap Seconds, how do they work?
From: Jason Hellenthal <jhellenthal () dataix net>
Date: Wed, 4 Jul 2012 18:29:27 -0400
On Wed, Jul 04, 2012 at 06:10:45PM -0400, William Herrin wrote:
On Wed, Jul 4, 2012 at 1:44 PM, Brett Frankenberger <rbf+nanog () panix com> wrote:Without leap seconds, the sun stops being overhead at noon.But that's ridiculous. The sun *isn't* overhead at noon except at one particular longitude within each time zone. Everywhere else time synch to local noon is +/- half an hour. IMO, leap seconds are a really bad idea. Let the vanishingly few people who care about a precision match against the solar day keep track of the deviation from clock time and let everybody else have a *simple* clock year after year. When the deviation increases to an hour every what, thousand years? Then you can do a big, well publicized correction where everybody is paying attention to making it work instead of being caught by surprise.
Yeah but what you don't understand is that manual navigation after a certain point of difference becomes inaccurate to a degree that is unacceptable by most military standards. 100 or a 1000 years the difference is too big. Someone somewhere at some point evaluated this need in the range of "0.3 - 0.9? in order for nauticle and other means of direction to not be impacted. It would be easy to disagree and say "Well! we have GPS and other such digital devices to tell where you are now!"... and if those go out just like all these failing Java Apps ?. I would not want to be the guy that would have to calculate all possible differences just to attempt to get a accurate location and then find out the math was wrong and you are 100 miles off target. Just sayin! -- - (2^(N-1))
Current thread:
- Re: F-ckin Leap Seconds, how do they work?, (continued)
- Re: F-ckin Leap Seconds, how do they work? Steven Bellovin (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Peter Lothberg (Jul 05)
- Re: F-ckin Leap Seconds, how do they work? Steven Bellovin (Jul 05)
- Re: F-ckin Leap Seconds, how do they work? Tony Finch (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Owen DeLong (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Brett Frankenberger (Jul 04)
- Re: F-ckin Leap Seconds, how do they work? valdis . kletnieks (Jul 04)
- Re: F-ckin Leap Seconds, how do they work? Brett Frankenberger (Jul 04)
- Re: F-ckin Leap Seconds, how do they work? valdis . kletnieks (Jul 04)
- Re: F-ckin Leap Seconds, how do they work? William Herrin (Jul 04)
- Re: F-ckin Leap Seconds, how do they work? Jason Hellenthal (Jul 04)
- Re: F-ckin Leap Seconds, how do they work? George Herbert (Jul 04)
- Re: F-ckin Leap Seconds, how do they work? Jimmy Hess (Jul 04)
- Re: F-ckin Leap Seconds, how do they work? Owen DeLong (Jul 04)
- Re: F-ckin Leap Seconds, how do they work? joel jaeggli (Jul 04)
- Re: F-ckin Leap Seconds, how do they work? Vadim Antonov (Jul 05)
- Re: F-ckin Leap Seconds, how do they work? Dmitry Burkov (Jul 05)
- Re: F-ckin Leap Seconds, how do they work? Vadim Antonov (Jul 05)
- Re: F-ckin Leap Seconds, how do they work? Jared Mauch (Jul 05)
- Re: F-ckin Leap Seconds, how do they work? Nick Hilliard (Jul 05)
- Re: F-ckin Leap Seconds, how do they work? Henning Stener (Jul 05)