Watching the sky with a pair of Polaroid sunglasses will give a whole different view of things. The trails and their vapours become a whole lot more obvious as does the constant haze.
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Watching the sky with a pair of Polaroid sunglasses will give a whole different view of things. The trails and their vapours become a whole lot more obvious as does the constant haze.
oh, like the ones you use to watch a solar eclipse?
Like the ones fishermen wear. Polaroid is actually a brand, polarised is actually the correct name I suppose. A bit like Kleenex being synonymis with tissues. Any brand name and many crappy sunglasses are polarised and the effect is to reduce glare and increase contrast.
http://www.allaboutvision.com/sunglasses/polarized.htm