Quote:
Originally Posted by loulac
One pane of double glazed windows often has received a treatment stopping infra red and UV rays, I really don't know if ordinary glass will stop anything. An expert on the wavelenghts of light will be welcome to give his opinion. Local conditions should be taken into account : Above 3500 feet it takes time to harden tomatoes. Texan sun may be stronger than in the state of Washington...
|
The higher the elevation the more UV you can get.
So if you were in Washington state on a mountain you would pick up more than where I live in Texas and get sunburned even though you were freezing cold.
I would burn to a crisp at 6000 feet along the equator.
Regular glass filters almost all UVB light but only about 25 % of UVA.
UVB is what causes sunburn.
Infra red light is what causes heat radiation and keeps us from freezing to death.
So in reality if the sun only put out these two light spectrum we would be in the dark but warm and getting sunburned.
It would be a very strange world indeed.
Worth