Received: from mail-qa0-f61.google.com ([209.85.216.61]:35111) by stodi.digitalkingdom.org with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) (envelope-from ) id 1T0SE7-0005ic-JX; Sun, 12 Aug 2012 00:04:48 -0700 Received: by qadz32 with SMTP id z32sf3378241qad.16 for ; Sun, 12 Aug 2012 00:04:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlegroups.com; s=beta; h=x-beenthere:date:from:to:message-id:in-reply-to:references:subject :mime-version:x-original-sender:x-original-authentication-results :reply-to:precedence:mailing-list:list-id:x-google-group-id :list-post:list-help:list-archive:sender:list-subscribe :list-unsubscribe:content-type; bh=uBmIuyf+UBUZPNy+0qYDunodiQJw6SHSIpT4tsNgaWM=; b=wzJGDsd01mdo0TXRlAKqaavOB7m18JBNZvUR8Lp8+cdnmqN/h2m638ZrNQ9zGVSuxk KeVIcuV/9panGmQkJ73O/xBtebV83gVYDqRRt7yqpk+eDqa96K4admicUHlTY8XgZGKS iAN5XUJAdZQxNoIxmlR+US7DITC9nOvwU3i1A= Received: by 10.68.233.163 with SMTP id tx3mr312170pbc.12.1344755076609; Sun, 12 Aug 2012 00:04:36 -0700 (PDT) X-BeenThere: lojban@googlegroups.com Received: by 10.68.211.228 with SMTP id nf4ls15881898pbc.4.gmail; Sun, 12 Aug 2012 00:04:36 -0700 (PDT) Received: by 10.68.136.7 with SMTP id pw7mr1488824pbb.1.1344755076177; Sun, 12 Aug 2012 00:04:36 -0700 (PDT) Date: Sun, 12 Aug 2012 00:04:34 -0700 (PDT) From: Gleki Arxokuna To: lojban@googlegroups.com Message-Id: In-Reply-To: References: <4bce1b85-1742-4819-bebf-3f3ffe9162e2@googlegroups.com> Subject: Re: [lojban] Re: Direction of Rotation MIME-Version: 1.0 X-Original-Sender: gleki.is.my.name@gmail.com X-Original-Authentication-Results: ls.google.com; spf=pass (google.com: domain of gleki.is.my.name@gmail.com designates internal as permitted sender) smtp.mail=gleki.is.my.name@gmail.com; dkim=pass header.i=@gmail.com Reply-To: lojban@googlegroups.com Precedence: list Mailing-list: list lojban@googlegroups.com; contact lojban+owners@googlegroups.com List-ID: X-Google-Group-Id: 1004133512417 List-Post: , List-Help: , List-Archive: Sender: lojban@googlegroups.com List-Subscribe: , List-Unsubscribe: , Content-Type: multipart/alternative; boundary="----=_Part_1_11471736.1344755074580" X-Spam-Score: -0.7 (/) X-Spam_score: -0.7 X-Spam_score_int: -6 X-Spam_bar: / ------=_Part_1_11471736.1344755074580 Content-Type: text/plain; charset=ISO-8859-1 So Robin entered right-hand rule to Gismu issues page. Can you provide some examples of it's usage with all places filled in? Is it culturally-neutral (both left and right direction can be equally used)? btw, lindar started this topic because he NEEDED a way of expressing the concept of "clockwise". doi loi jbobadna, where are the examples after all? On Sunday, August 12, 2012 12:34:00 AM UTC+4, aionys wrote: > > > > On Sat, Aug 11, 2012 at 10:11 AM, djandus >wrote: > >> I don't have time to go over every post in this thread, especially seeing >> as it is rather full of people getting offended. >> >> Has anyone brought up the right-hand rule? (for rotations) >> >> That is, for the wheels on a car, I could say: >> {lo karce xislu cu carna zo'e lo zunle be lo karce} >> because if you were to stick your right thumb to the car's left, your >> fingers would curl around in the direction of rotation. This is consistent >> with the overall standard of the right-hand rule, which comes up on this >> topic via the cross product definition of angular motion. That is, if I >> were to be asked the "direction" of the angular motion, momentum, or >> similar, it would be to the car's left. This *is* arbitrary, but >> completely standardized in physics. >> > > I believe Pierre did, yes. > > >> Similarly, I would say that a top would be {carna zo'e lo gapru} if it >> were spinning counter-clockwise when viewed from above. If I were to >> instruct one to remove a screw, I could say {ko cargau lo klupe ku zo'e lo >> bartu}, because the direction a screw moves and the direction it needs to >> rotate correspond by the same standard right-hand rule. If I were to use >> the carna2 spot, the axis would probably be defined with a direction as >> "positive," after which I could then use {li ni'u}/{li ma'u} in carna3. >> (This would be the establisment of a coordinate system.) If the axis was >> given descriptively without a direction, then my other examples illustrate >> how I would deal with that. >> >> Is there anything terribly wrong with these examples? >> mu'o mi'e djos >> > > I don't see anything. > > -- > mu'o mi'e .aionys. > > .i.e'ucai ko cmima lo pilno be denpa bu .i doi.luk. mi patfu do zo'o > (Come to the Dot Side! Luke, I am your father. :D ) > > -- You received this message because you are subscribed to the Google Groups "lojban" group. To view this discussion on the web visit https://groups.google.com/d/msg/lojban/-/zs8HlDKVgFwJ. To post to this group, send email to lojban@googlegroups.com. To unsubscribe from this group, send email to lojban+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/lojban?hl=en. ------=_Part_1_11471736.1344755074580 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable So Robin entered right-hand rule to Gismu issues page.

C= an you provide some examples of it's usage with all places filled in? Is it= culturally-neutral (both left and right direction can be equally used)?

btw, lindar started this topic because he NEEDED a w= ay of expressing the concept of "clockwise".

doi l= oi jbobadna, where are the examples after all?

On Sunday, August 12,= 2012 12:34:00 AM UTC+4, aionys wrote:


On Sat, Aug 11, 2012 at 10:11 AM= , djandus <jan...@gmail.com> wrote= :
I don't have time to go over every post in this thread, especially seeing a= s it is rather full of people getting offended.

Has anyo= ne brought up the right-hand rule? (for rotations)

That is, for the wheels on a car, I could say:
{lo karce xis= lu cu carna zo'e lo zunle be lo karce}
because if you were to sti= ck your right thumb to the car's left, your fingers would curl around in th= e direction of rotation. This is consistent with the overall standard of th= e right-hand rule, which comes up on this topic via the cross product defin= ition of angular motion. That is, if I were to be asked the "direction" of = the angular motion, momentum, or similar, it would be to the car's left. Th= is is arbitrary, but completely standardized in physics.

I believe Pierre did, yes.
 
Similarly, I would say that a top would= be {carna zo'e lo gapru} if it were spinning counter-clockwise when viewed= from above. If I were to instruct one to remove a screw, I could say {ko c= argau lo klupe ku zo'e lo bartu}, because the direction a screw moves and t= he direction it needs to rotate correspond by the same standard right-hand = rule. If I were to use the carna2 spot, the axis would probably be defined = with a direction as "positive," after which I could then use {li ni'u}/{li = ma'u} in carna3. (This would be the establisment of a coordinate system.) I= f the axis was given descriptively without a direction, then my other examp= les illustrate how I would deal with that.

Is there anything terribly wrong with these examples?
mu'o mi'e djos

I don't see anything.

--
mu'o mi'e .aionys.

.i.e'ucai ko cmima lo pilno be denpa bu .i doi.luk. mi patfu do zo'o
(Co= me to the Dot Side! Luke, I am your father. :D )

--
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