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- From: bwilliam@oyster.smcm.edu (Bill Williams)
- Newsgroups: bionet.plants
- Subject: Re: H2O/CO2 diffusion rates
- Message-ID: <17010@umd5.umd.edu>
- Date: 16 Nov 92 16:19:54 GMT
- References: <1992Nov11.180614.12030@gserv1.dl.ac.uk>
- Sender: news@umd5.umd.edu
- Organization: St. Mary's College of Maryland
- Lines: 27
- X-UserAgent: Nuntius v1.1.1d10
- X-XXMessage-ID: <A72D4366020101D2@williams.smcm.edu>
- X-XXDate: Mon, 16 Nov 92 17:24:06 GMT
-
- In article <1992Nov11.180614.12030@gserv1.dl.ac.uk> Tony Travis,
- ajt@rri.sari.ac.uk writes:
- >Hans Meidner (a famous stomatal physiologist) once told me that he had
- >made an instrument like an engineers needle micrometer that was
- >sensitive enough to be placed directly in a stomatal aperture and
- >measure stomatal movements directly!
- >
- >This was at an SEB conference in Sterling (Scotland) a long time ago,
- >and we were just chatting about measuring stomata in the dark (I was
- >using a viscous flow porometer at that time). I believe he did make
- >such an instrument (he was a watchmaker's apprentice as a boy) but I
- >never saw it in use ...
-
- I'm delighted to know that Hans Meidner was once a watchmaker's
- apprentice! He looks (and sounds!) precisely like the archetypal
- "little ald vatchmaker" one imagines carefully turning out precision
- machinery in a cottage in the Black Forest. For that matter, he also
- looks like the archetypal German scientist I suppose.
-
- Unfortunately, I can't find the reference to the
- microscopic/gas-exchange work in my reference list, but I'll keep
- looking ("micro" and "stoma" didn't turn up anything).
- ___________________________________
- William E. Williams, bwilliam@oyster.smcm.edu
- Divison of Natural Sciences and Mathematics
- St. Mary's College of Maryland
- St. Mary's City, MD 20686
-