... out of which textbook? I've seen exteriors at 8000K at which Colour Temperature I needed gain in the camera. Well, the sun isn't that hot. You can get colour temperatures that high by filtering out the direct sunlight which has more of the red components (e.g. in the shade), and just using the blue light scattered in the atmosphere (i.e. the blue sky). Generally when people talk of midday colour temperature, it's the average ...

... out of which textbook? I've seen exteriors at 8000K at which Colour Temperature I needed gain in the camera. Well, the sun isn't that hot. You can get colour temperatures that high by filtering out the direct sunlight which has more of the red components (e.g. in the shade), and just using the blue light scattered in the atmosphere (i.e. the blue sky). Generally when people talk of midday colour temperature, it's the average across ...

... than sun rays. Or is that mostly tanning booth propaganda? Although I believe he lives in the tropical north. Even here in NSW a warm winter's day is akin to a decent summer's day in Britain. As I mentioned above I do believe that sunbeds are not as safe as they would have us believe. ***And I would agree with you but I believe them somewhat safer than direct sunlight. Something to do with two different types of UV rays.

...: being able to see the Sun confirms that the atmosphere is transparent to most radiation from the Sun...). This sunlight doesn't do much to warm the atmosphere initially ('cos the atmosphere is transparent in the visible range) so... out is that the heating source for the lower atmosphere is at the bottom - the ground warmed by incoming sunlight and emitting infra-red. This means that the air is hottest close to the ground, and so tends to ...

... effects on the suit's exterior, this stuff could also scratch up your transparent helmet and protective UV visor, and cause your suit's exterior to become dark enough to the point where it's getting a lot hotter in the sunlight, causing the materials it's made out of to overheat and fail, and putting a increased load on the cooling system of the suit. I think 'my' idea (saw a picture of it on EA a couple of years ago) of ...

... affect of lugging it back into the habitat with you, and the abrasive effects on the suit's exterior, this stuff could also scratch up your transparent helmet and protective UV visor, and cause your suit's exterior to become dark enough to the point where it's getting a lot hotter in the sunlight, causing the materials it's made out of to overheat and fail, and putting a increased load on the cooling system of the suit. Pat

... in quality to naturally occurring crude oil. It is | produced as a by-product of photosynthesis by a genetically engineered strain | of algae, housed in tanks of treated waste-water and exposed to sunlight. The | tanks can be placed on non-arable land. | | Gasoline, diesel and jet fuel have already been refined from the green crude, and | the company aims to produce 10,000 barrels per ...

... crude" is similar in quality to naturally occurring crude oil. It is produced as a by-product of photosynthesis by a genetically engineered strain of algae, housed in tanks of treated waste-water and exposed to sunlight. The tanks can be placed on non-arable land. Gasoline, diesel and jet fuel have already been refined from the green crude, and the company aims to produce 10,000 barrels per day ...

... crude" is similar in quality to naturally occurring crude oil. It is produced as a by-product of photosynthesis by a genetically engineered strain of algae, housed in tanks of treated waste-water and exposed to sunlight. The tanks can be placed on non-arable land. Gasoline, diesel and jet fuel have already been refined from the green crude, and the company aims to produce 10,000 barrels per day within five ...

... is similar in quality to naturally occurring crude oil. It is | produced as a by-product of photosynthesis by a genetically engineered strain | of algae, housed in tanks of treated waste-water and exposed to sunlight. The | tanks can be placed on non-arable land. | | Gasoline, diesel and jet fuel have already been refined from the green crude, and | the company aims to produce 10,000 barrels per day within...