PSN-L Email List Message
Subject: Re: seismo. on ebay
From: Dave Nelson davenn@..............
Date: Sat, 02 Mar 2002 01:06:23 +1100
At 07:28 PM 2/28/02 -0700, you wrote:
>Hi Bob and all,
>If it has a drum and a pen - it's a seismograph - right???
Not necessiarly.... many of the older analog barometers were drum and
paper units i used to fondly admire the one at my local airport met
office when i was a young kid
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