lighting links

From: joe@...

> I think we DO know the effects of 24-hour light on crop
> plants. We know this both from crops grown above the arctic circle,
> where they get 24/7 sunlight during the summer,

Has anybody actually grown food crops like corn or beans above the
arctic circle?

> as well as from
> experiments such as NASA's growth chambers, which do the same thing
> with artificial light. And yes, it does increase crop yields
> substantially.

I was mostly thinking about 24 hours of full sunlight-intensity light.
Have the NASA growth chamber come anywhere close to that intensity?

Regards,

Mike Combs