"When the question is "how much attenuation of beam energy is provided by transmission in air," a reference work that examones the solar energy balance of the planet is not directly useful."
Agreed, long story how we ended up down this path!
--Boot Hill
417 posted on 09/29/2004 3:24:51 AM PDT by Boot Hill
(Candy-gram for Osama bin Mongo, candy-gram for Osama bin Mongo!!!)