Path: csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: "Carlos E.R." Newsgroups: comp.os.linux.misc,alt.usage.english Subject: Re: GNU Date: Sun, 22 Mar 2026 03:19:47 +0100 Lines: 54 Message-ID: <37049mxvst.ln2@Telcontar.valinor> References: <10od9kg$9cih$1@dont-email.me> <10odnsi$d647$2@dont-email.me> <10odop7$djnv$1@dont-email.me> <10odsq2$er59$1@dont-email.me> <1772787512-12588@newsgrouper.org> <10oeeru$kih0$1@dont-email.me> <10oeiea$lo5g$2@dont-email.me> <6our7mxi9i.ln2@Telcontar.valinor> <2jipqkts0iiap7qekf3mr8n580hh3tgph6@4ax.com> <10oj4iv$256in$7@dont-email.me> <10ojmjv$2ashr$1@dont-email.me> <10okvro$2qvnj$1@dont-email.me> <10p7bp4$1g2jr$1@dont-email.me> <10p8ukd$1vi0v$9@dont-email.me> <10p901u$1vi0v$16@dont-email.me> <10pa3ad$2ea0n$1@dont-email.me> <1rs9q42.1kx6c2g1st83xnN%nospam@de-ster.demon.nl> <1rscbyq.16ibu7476l1mN%nospam@de-ster.demon.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Trace: individual.net RdvkwONT28DreFXbp57vvgNt/Rv0ibZ/jZP2ijBd6ZC+f3PXIz X-Orig-Path: Telcontar.valinor!not-for-mail Cancel-Lock: sha1:Qfg9NOmH2n/LSeEbJwFbJUhVqa8= sha256:6MVrZ4FHWQ0Yv8VHD3HPdD5GiIW4fNn0m/nP5cJgnqw= User-Agent: Mozilla Thunderbird Content-Language: es-ES, en-CA In-Reply-To: <1rscbyq.16ibu7476l1mN%nospam@de-ster.demon.nl> X-Leafnode-NNTP-Posting-Host: 127.0.0.1 Xref: csiph.com comp.os.linux.misc:83678 alt.usage.english:1140355 On 2026-03-21 22:32, J. J. Lodder wrote: > Carlos E.R. wrote: > >> On 2026-03-20 12:39, J. J. Lodder wrote: >>> Carlos E.R. wrote: >>> >>>> On 2026-03-17 16:43, Rich Ulrich wrote: >>>>> On Tue, 17 Mar 2026 10:21:47 +1100, Peter Moylan >>>>> wrote: >>>> >>>> >>>> >>>>>> This sounds like a north/south navigation problem, but it's also an >>>>>> east/west problem. Sailing across the Indian Ocean, you need to know >>>>>> when to expect to see land. If you don't see it, you've either misjudged >>>>>> your longitude or you're wandering into the Roaring Forties. >>>>> >>>>> The check on north-south, by the sun, is only at noon each day, yes? >>>> >>>> You might use another time, but you have to know exactly how much off-noon. >>> >>> For which you would need a previous fix, >>> and a knowledge of how you have moved in the meantime. >>> >>>> In one Jules Verne novel, they measure the height of the sun at another >>>> time, because it was cloudy, but they took two measures at both sides of >>>> the noon, in order to estimate the height of the sun at the exact noon. >>> >>> Verne's expositions on science must sometimes be taken >>> with more than one grain of salt, >>> >>> Jan >>> (but don't have this one) >>> >>> >> >> Verne was not a scientist, but he asked others. He wrote a lot about >> calculating the position. Probably he could not do the calculation >> himself, but he was familiar with the general procedures. > > Verne could certainly do the sums needed for ordinary navigation. > In his rich years he owned a private yacht, [1] > and travelled widely in Europe, > > Jan > [1] Several in fact. He started with a small boat. > As he got richer he bought bigger ones. > Wow. I did not know that. -- Cheers, Carlos. ES🇪🇸, EU🇪🇺;