Re: [ATM] Baffled Observatory Slit

[Mark Holm <mdholm@telerama.com>]

Nils Olof Carlin wrote:

> the sensitivity does not depend on the amount of sensitized chemical
> (which is essentially constant and at maximum, at least in low light),
> but rather on the amount of "used", de-sensitized but not yet eliminated
> material. It is eliminated with a time constant of a few minutes, this
> governs the time of dark adaptation.

Thanks for that clarification.  An interesting result.  I wonder if it
means the "used" photosensitive compound binds to receptor molecules,
and increased sensitivity results from the receptors being freed up.  I
know a lot of biochemical signaling works by similar systems.


-- 
Mark Holm
mdholm@telerama.com

_______________________________________________
ATM mailing list http://www.atmlist.net/