Path: ...!weretis.net!feeder9.news.weretis.net!panix!.POSTED.panix2.panix.com!panix2.panix.com!not-for-mail From: kludge@panix.com (Scott Dorsey) Newsgroups: rec.arts.sf.written Subject: Re: The insane progress nobody is talking about Date: 25 Jun 2024 18:59:29 -0000 Organization: Former users of Netcom shell (1989-2000) Lines: 21 Message-ID: References: Injection-Info: reader1.panix.com; posting-host="panix2.panix.com:166.84.1.2"; logging-data="15992"; mail-complaints-to="abuse@panix.com" Bytes: 1706 Michael F. Stemper wrote: >On 20/06/2024 11.21, Paul S Person wrote: >> On Thu, 20 Jun 2024 02:59:25 GMT, Random wrote: >> >> I've seen a similar claim about timers that actually count >> cycles-per-second: if those vary then the timer misperforms. > >This isn't really an issue in North America. According to NERC[1], frequency in >the Eastern Interconnection (EI) is above 59.972 Hz 95% of the time. This is >99.95% of nominal frequency, or an error of 28 mHz. Unfortunately it used to be a huge problem for systems in North America that were not on the grid, like film sets and music festivals running off generators. Also lots of people on boats. These days the increasing use of inverter generators instead of synchronous types means that we can use Hammond organs at music festivals again and expect them to stay on pitch. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis."