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Article #2023

Re: Nut van roterende schijf op uurwerk?

#2023
From: s|b
Date: Thu, 02 Jun 2011 17:57
43 lines
2940 bytes
s|b schreef:

> Ik heb een uurwerk ("horloge" zoals we hier zeggen) en daar zit een
> roterende schijf op. Zie:
> 
> <http://www.festina.de/web/index.php/component/content/article/46-herrenuhren-sport-f16059/104-f16059a-sport--multifunktion#>

Ik ben blijven volharden in Google (Scroogle eigenlijk) en nadat ik de
Engelstalige benaming had gevonden, nl. "uni-directional rotating bezel"
vond ik ook de functie.

Blijkbaar wordt dit ding (vooral) door duikers gebruikt, om te timen hoe
lang ze al onder water zitten. Je zet de 0 op de kleine wijzer en dan
kan je de volgende 60 minuten volgen.

<http://www.richfulllife.ca/my_weblog/2007/11/the-rotating-be.html>

<quote>

What is a Uni-Directional Rotating Bezel?

Well this is what I know.

    To be precise, it is the relatively large, usually metal, ring that
encircles the crystal covering the watch face. It generally has the same
indicators or tic marks for minutes as the watch, with actual numerals
designating each ten minute increment. It also has a pointer mark at the
zero position to indicate a starting point.

Which means that it is used to time how long you are doing something. By
zeroing it to the minute hand, you can track time lapsed. A
uni-directional watch is mostly used by divers, and as a fail-safe it
can only be turned counter-clockwise, which if accidentally bumbed,
means that you will always track how much time has passed, and neved
accidentally show too much time available.

</quote>

Ik kan weer met een gerust hart gaan slapen... :-)

-- 
Ik usenet, dus ik ben.
<http://www.briachons.org/>
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Newsgroups: be.misc,nl.misc
Subject: Re: Nut van roterende schijf op uurwerk?
Date: Thu, 02 Jun 2011 19:57:42 +0200
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