Mike Raiford wrote:
> Eero Ahonen wrote:
>> Orchid XP v8 wrote:
>>>
>>> Seriously... WHAT THE HELL ELSE DO YOU WANT?!
>>
>> Adjusting sensitivity of the optical sensors (the sensors itself, not 
>> just the iris). 
> 
> Isn't that what dark adaptation is? 

http://en.wikipedia.org/wiki/Visual_purple

 > Essentially your brain increases the
> amount of gain when there are low levels of light.

No. It's actually a photosynthetic chemical in your retina that builds 
up as long as light isn't strong enough to break it down. It's what 
microbes used before chlorophyll. It's not something in your brain.

-- 
   Darren New / San Diego, CA, USA (PST)
     "That's pretty. Where's that?"
          "It's the Age of Channelwood."
     "We should go there on vacation some time."

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