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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Polarized vehicle headlights.
When I was a child, in my grandfather's bookcase there was a copy of “Science Advances” by JBS Haldane. If you aren’t familiar with Haldane he’s well worth a Google. The most memorable concept in that book for me, other than his “Come the revolution” Marxist style, was a few paragraphs on polarized headlamps. The idea had been proposed by the inventor of Polaroid sheet polarizers , Edwin Land. Basically the idea is we all drive about using un-dipped headlights with the lights, and windscreens polarized with a 90deg differential. I know it is said that it takes a genius to think of an idea that later seems obvious, but in this case I really feel that if Land hadn’t thought of it, I would have, and I expect many here would say the same. Here's an good article on the subject http://www.polarization.com/land/land.html and here is the Haldane’s book see page 183 http://www.archive.org/stream/scienc...ge/n7/mode/2up So this issue must have been considered time and time again, yet always rejected for mainstream use. Why? Hell, they can then even turn all the street-lighting off! (As they seem to be doing so anyway). -- Graham. %Profound_observation% |
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