But you st= ill need to specify which thumb. Is there no escape from this?=

From: .arpis. <rpglover64+jbobau@gmail.com>
To: lojban@googlegroups.com
<= b>Sent: Sunday, August 12, 20= 12 10:34 AM
Subject: R= e: [lojban] Re: Direction of Rotation

Right hand rules are a series of mnemonics (usually taught in physics)
f= or remembering the arbitrary but consistent directions and sign
choices.= An example: If the current is flowing in the direction of
your thumb, t= he electric field is in the direction of your fingers (on
the right hand= ).
Left hand rules can be used, but negate one sign (in the math
repr= esentation) relative to the right hand rules.

A useful right hand ru= le for lojban might be "the direction your
fingers curl when you point y= our right thumb at your face"

On Sun, Aug 12, 2012 at 3:04 AM, Gleki= Arxokuna
<gleki.is.my.name@gmail.com> wrote:=
> 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 N= EEDED a way of expressing the
> concept of "clockwise".
>
&g= t; doi loi jbobadna, where are the examples after all?
>
> On S= unday, 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 t= ime to go over every post in this thread, especially seeing
>>>= as it is rather full of people getting offended.
>>>
>&g= t;> Has anyone brought up the right-hand rule? (for rotations)
>&g= t;>
>>> That is, for the wheels on a car, I could say:
&g= t;>> {lo karce xislu cu carna zo'e lo zunle be lo karce}
>>&= gt; because if you were to stick your right thumb to the car's left, your
>>> fingers would curl around in the direction of rotatio= n. This is consistent
>>> with the overall standard of the righ= t-hand rule, which comes up on this
>>> topic via the cross pro= duct definition of angular motion. That is, if I were
>>> to be= asked the "direction" of the angular motion, momentum, or similar, it
&= gt;>> would be to the car's left. This is arbitrary, but completely s= tandardized
>>> in physics.
>>
>>
>>= I believe Pierre did, yes.
>>
>>>
>>> Sim= ilarly, 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 l= o klupe ku zo'e lo
>>> bartu}, because the direction a screw mo= ves 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 c= arna3.
>>> (This would be the establisment of a coordinate syst= em.) If the axis was
>>> given descriptively without a directio= n, 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 )
>>
> --
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> To view this discussion on the web visit
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>
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--
mu'o mi'e .arpis.

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