Re: [lojban-beginners] how to translate "velocity"?

On Tue, Jan 29, 2013 at 10:18 AM, Jonathan Jones <eyeonus@gmail.com> wrote:

parbi loni mitre loni snidu
pab - tre - nid

Sorry, quantity not property.

A zi'evla might be better than a lujvo in this instance, if only because the rafsi suck.

On Tue, Jan 29, 2013 at 9:15 AM, la gleki <gleki.is.my.name@gmail.com> wrote:

On Tuesday, January 29, 2013 7:50:33 PM UTC+4, tsani wrote:
On 29 January 2013 04:03, la gleki <gleki.is...@gmail.com> wrote:

what is the word for "velocity" after all?
dont tell me it's {nilsutra}
velocity=length/time

(I hate-await)

latro'a and I devised a system for making arbitrary units in Lojban. Our system involves making a zi'evla for every unit you want, and defining it using a special kind of tanru. Working under the assumption that XI+PA forms #FREE, we created two experimental cmavo: {pi'ai} (KE) and {te'ai} (XI).

{pi'ai} is used as a prefix to indicate that the unit-selbri are being multiplied to form a new unit selbri. {te'ai} is used after a unit selbri to exponentiate it.
We can easily create the units for velocity, m*s^-1, with this system as follows:

1) prefix the tanru with pi'ai; {pi'ai ...}*
2) determine the unit selbri that we need: {mitre} and {snidu}; {pi'ai mitre snidu}*
3) exponentiate accordingly; {pi'ai mitre snidu te'ai ni'u pa}

Because this new unit tanru is long, we need to make up a brivla for it based on its components ideally. To indicate that it was created with this method, we decided that prefixing it with pi'air- might be a good idea, but perhaps that the prefix can be dropped contextually.

{pi'airtredilsnidu = x1 measures x2 metres per second (by standard x3)}
= pi'ai mitre snidu te'ai ni'u pa

Some of you may hate this system, and that's okay. It's not like I approve of everything everyone does either.

I hate this system just because you have to create new zi'evla every time you use a new formula (yes, just like in natlangs!).
But speed is just "Length/time". Just a simple formula.

I wish someone could say here
Entia non sunt multiplicanda praeter necessitatem.
(entities should not be multiplied needlessly).

i.e. i wish someone could express Length/time, not speed in a concise way.

An example of defining the Newton:
{.i lo ka pi'airniutni cu ka ce'u pi'ai ki'ogra mitre snidu te'ai ni'u re ce'u ce'u}

I've been using {mitre} as a simplification for displacement. Obviously, I'd need to construct some unit selbri for displacement, then use that in these definitions above to get vectors.

.i mi'e la tsani mu'o

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mu'o mi'e .aionys.

.i.e'ucai ko cmima lo pilno be denpa bu .i doi.luk. mi patfu do zo'o
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