From eks2@york.ac.uk Thu Jun 06 03:42:06 2002 Return-Path: X-Sender: eks2@york.ac.uk X-Apparently-To: lojban@yahoogroups.com Received: (EGP: mail-8_0_3_2); 6 Jun 2002 10:42:05 -0000 Received: (qmail 39722 invoked from network); 6 Jun 2002 10:42:05 -0000 Received: from unknown (66.218.66.216) by m10.grp.scd.yahoo.com with QMQP; 6 Jun 2002 10:42:05 -0000 Received: from unknown (HELO n29.grp.scd.yahoo.com) (66.218.66.85) by mta1.grp.scd.yahoo.com with SMTP; 6 Jun 2002 10:42:05 -0000 Received: from [66.218.67.131] by n29.grp.scd.yahoo.com with NNFMP; 06 Jun 2002 10:42:05 -0000 Date: Thu, 06 Jun 2002 10:42:02 -0000 To: lojban@yahoogroups.com Subject: Re: lightning Message-ID: In-Reply-To: <0206052248350U.02104@neofelis> User-Agent: eGroups-EW/0.82 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Length: 1210 X-Mailer: Yahoo Groups Message Poster From: "sklyanin" X-Originating-IP: 144.32.128.133 X-Yahoo-Group-Post: member; u=71790832 X-Yahoo-Profile: sklyanin --- In lojban@y..., Pierre Abbat wrote: > On Wednesday 05 June 2002 22:29, Shane J. H. Sniffen wrote: > > what does one do when one is unsure of whether something is the origin > > of lightning or the thing "struck"? lidni requires that you know > > what's what. i suppose you could settle for tanruing it to lidni, but > > that's too unspecific it seems. is there a way to like join or meld > > the x2 and x3 of lidni? > > Can you give an example of when you're unsure? The only one that comes to > mind is intercloud lightning, which could be expressed as {simxu be fa le'i > dilnu be'o lindi}. > > phma The definition of {lindi} seems to cover also "electric arc" (e.g. a welding arc?), or, possibly, a spark. For those x2 and x3 appear to be symmetric (e.g. two electrodes). Even with the common lightning the situation is not so simple: there are actually two "streamers" coming from a cloud and from earth and meeting halfway in the air - see an article on Lightning Physics at http://regentsprep.org/Regents/physics/phys03/alightnin/default.htm Perhaps, for such symmetric situations {soi} could be used, something like ti lindi le dilnu le dertu soi vo'e co'o mi'e .evgenis.