Re: [CAD_CAM_EDM_DRO] Way off topic: Olfactory detection and asteroid probes

I'm sorry I started this now. I apollogise deeply to you all [John looks
towards his feet]. How is it you know how good a cockroach can smell as
well. Is there a device I can buy that will let me talk to them? I could
flock them all to the school's kitchens for the Off-stead inspectors to
perruse next visit. How well can pigeons smell? These are your standard
gray, thick pigeons. Not the smarter ones that don't eat gravel and stuff.

John

----- Original Message -----
From: "dave engvall" <dengvall@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Thursday, February 22, 2001 8:14 PM
Subject: Re: [CAD_CAM_EDM_DRO] Way off topic: Olfactory detection and
asteroid probes


>
> Randy , et al:
> Sounds like the detection limits are getting close.... see Scientific
American, Mar 2001 pg. 29.
>
> Nothing is likely to come close to the female cockroach.....who reportably
can detect 10 molecules of the sex pheromone. in rough
> numbers 1e-24 mol. Not bad. :-)
>
> NASA also worries about exporting micro-organisms to space and also what
they might get back.
>
> Dave
>
>
> > At 11:02 PM 2/22/2001 -0000, e.heritage@... wrote:
> >
> > >topic now: At NASA they actually have a department that sniffs every
single
> >
> > As of yet, there is no electronic instrument that can detect organic
> > compounds with the sensitivity of a human nose. For many years, there
has
> > been an accessory for gas chromatographs (sensitive laboratory chemical
> > separator/analyzer) called an olfactory detector, which takes the output
>
>
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