Path: ...!news.nobody.at!2.eu.feeder.erje.net!feeder.erje.net!proxad.net!feeder1-2.proxad.net!cleanfeed4-a.proxad.net!nnrp2-1.free.fr!not-for-mail
Newsgroups: sci.lang,alt.usage.english
Subject: Re: OT: Converting miles/km
From: nospam@de-ster.demon.nl (J. J. Lodder)
Reply-To: jjlxa31@xs4all.nl (J. J. Lodder)
Date: Sun, 22 Sep 2024 17:50:00 +0200
References: <slrnvepbvk.tfc.naddy@lorvorc.mips.inka.de> <8a49d912-d0bf-3ca1-6f10-2639a7e8eddc@email.de> <vcjkbf$1322i$2@dont-email.me>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Organization: De Ster
Mail-Copies-To: nobody
User-Agent: MacSOUP/2.8.5 (ea919cf118) (Mac OS 10.12.6)
Lines: 22
Message-ID: <66f03ca6$0$1300$426a34cc@news.free.fr>
NNTP-Posting-Date: 22 Sep 2024 17:49:58 CEST
NNTP-Posting-Host: 213.10.137.58
X-Trace: 1727020198 news-4.free.fr 1300 213.10.137.58:65448
X-Complaints-To: abuse@proxad.net
Bytes: 1548

Peter Moylan <peter@pmoylan.org> wrote:

> On 20/09/24 19:30, Helmut Richter wrote:
> 
> > I like much more those thumb rules that actually allow you to estimate
> > orders of magnitude, e.g.:
> >
> > 1 year ? π · 10? sec ? 31415926.54 sec
> >
> > or
> >
> > 1 year ? √10 · 10? sec ? 31622776.60 sec
> >
> > or, only for those wanting more precision, the arithmetic mean of the two
> > which has three leading digits correct.
> 
> The one non-metric measurement that I find useful is "one foot per 
> nanosecond".

Impossible to go that fast,

Jan