Subject:
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Re: Darn those definitions (was: The new Super Car)
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 6 Aug 1999 18:11:02 GMT
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Original-From:
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El Barista <CAFFIEND@HOTMAILnospam.COM>
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Viewed:
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976 times
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to pointlessly extend the thread even more, here are actual definitions and
not vague etymologies.
quote:
"hydraulic \Hy*drau"lic\, a. [F. hydraulique, L. hydraulicus, fr. Gr. ?, ?,
a water organ; "y`dwr water + ? flute, pipe. See Hydra.] Of or pertaining to
hydraulics, or to fluids in motion; conveying, or acting by, water; as, an
hydraulic clock, crane, or dock."
/quote
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Note the mention of "fluids in motion"
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quote:
"fluid \Flu"id\, n. A fluid substance; a body whose particles move easily
among themselves.
Note: Fluid is a generic term, including liquids and gases as species.
Water, air, and steam are fluids. By analogy, the term is sometimes applied
to electricity and magnetism, as in phrases electric fluid, magnetic fluid,
though not strictly appropriate."
/quote
------prior message left below
From: John A. deVries II <zozzles@lanl.gov>
At 08:25 AM 08/06/1999 , you wrote:
> > Hydrolics involve a liquid, correct me if I'm wrong but that is where the
> > HYDRO comes from.
> Actually, it involves a fluid, not a liquid. Might seem like semantics, • but
> by the scientific definition gases are fluids.
Wrong-o. Sorry to be flameish about this, but generally speaking
(approximately) four states of matter are accepted: solid, liquid, gas and
plasma. Liquids and gases have fairly distinct differences having to do
with the degree of inter-particle forces.
A couple of definitions:
> pneu·mat·ic
> Pronunciation: nu-'ma-tik, nyu-
> Function: adjective
> Etymology: Latin pneumaticus, from Greek pneumatikos, from pneumat-, pneuma
> air, breath, spirit, from pnein to breathe
> hy·drau·lic
> Pronunciation: hI-'dro-lik
> Function: adjective
> Etymology: Latin hydraulicus, from Greek hydraulikos, from hydraulis
> hydraulic organ, from hydr- + aulos reed instrument
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message has 1 Reply:
 | | Re: Darn those definitions (was: The new Super Car)
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| (...) To pointlessly extend this discussion even further, here is what I get when I look up hydraulic: 15% webster hydraulic hy-drau-lic \h?^--'dro?-lik\ adj [L hydraulicus, fr. Gk hydraulikos, fr. hydraulis hydraulic organ, fr. hydr- + aulos reed (...) (25 years ago, 6-Aug-99, to lugnet.robotics)
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Message is in Reply To:
| | Darn those definitions (was: The new Super Car)
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| (...) Wrong-o. Sorry to be flameish about this, but generally speaking (approximately) four states of matter are accepted: solid, liquid, gas and plasma. Liquids and gases have fairly distinct differences having to do with the degree of (...) (25 years ago, 6-Aug-99, to lugnet.robotics)
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