The solution is a mercury stick barometer. Assuming:-
1. no air in the mercury tube, and
2. you know how far above sea level you are, then
they simply *have* to read right.
And without batteries, they're ultra-environmentally-friendly, too.
Simon Worby
-----Original Message-----
From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx] On
Behalf Of swisspace
Sent: 11 December 2007 09:15
To: olympus@xxxxxxxxxx
Subject: [OM] OT - weather station - and barometric pressure
I don't consider myself unintelligent, but playing with my digital
weather station is making me doubt my abilities ;-)
firstly do I need to be concerned that I lose the current barometric
setting when I remove the batteries (so that it can see the external
temperature sensor when its batteries have been changed). I think the
weather prediction is done on change rather than values, also do I need
to be concerned that I haven't calibrated it for 500m above sea level
and just leave it at the default.
I believe there are some online sites which give barometric pressure but
I didn't find one for the small swiss village where I live only the
nearest town which is 100m lower in altitude, do these things matter in
the scheme of things i.e is it worth the effort, do I really need to
know the exact barometric pressure?
Iechyd Da!
Ian
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