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Thread ID: 71342	2006-08-02 23:06:00	Headlights	Lizard (2409)	PC World Chat

Post ID	Timestamp	Content	User
475714	2006-08-05 02:25:00	They are sold as "fog lights". What they are is car bling. Shiny bits to be bolted on to make the vehicle "attractive" to those who like shiny bits. In fog, you just drive faster, because there's obviously no other traffic visible. Who needs foglights? :D I suppose if we had real fog in NZ, like we used to get around Birmingham, especially before the 'clean air act' was passed, then people would actually know what fog lights are. :)	Terry Porritt (14)
475715	2006-08-05 02:33:00	Years ago I was driving in 'pea soup'... 15' visibility... listening to Phil Collins crooning 'I can feel it in the air tonight'... doing around 80-100ks. I knew the road was straight and I was fairly sure it was empty, but was still the most spiritual experience of my life :D :D I know what pilots feel like flying on instruments and can't say that I'd ever want to repeat the experience! :eek:	Shortcircuit (1666)
475716	2006-08-05 02:40:00	I meant to ask- where can I get me some of that car bling? :D	Shortcircuit (1666)
475717	2006-08-05 07:38:00	I suppose if we had real fog in NZ, like we used to get around Birmingham, especially before the 'clean air act' was passed, then people would actually know what fog lights are. :) That 'fog' around Birmingham was probably just cigarette smoke.	manicminer (4219)
475718	2006-08-05 08:19:00	That 'fog' around Birmingham was probably just cigarette smoke. Could be:) Where the use of fog lights does cause dazzle is their unecessary use at night in wet weather when there is no fog. The low wide beam results in upward reflection from the wet surface, especially bad with smooth close rolled tarmac. Frequently in the Midlands, probably the same elsewhere, the winter fogs were so bad it could take over an hour to get home from work, a distance of some 5 miles or so. Since visibility was better on a motorbike than in a car, it was often the case that a string of cars would follow behind a motorbike. Now this actually happened to a friend of my brother, he crept home on his motorbike, following the curb, and finding the curb again after crossing each side turning, successfully found his house and turned into his drive which was quite long, only to be followed by a string of cars that had been behind him	Terry Porritt (14)
475719	2006-08-06 19:02:00	One factor that all seem to have forgotten here is that amber is not for being seen, but for seeing! Installing security lights in the ER portion of a hospital at which I worked, there was great discussion about white lights verses low-pressure sodium (amber) lighting . The problem was seeing motion in the security area . Since the human eye is much more eligible to see motion in the amber lighting than the white lighting, the choice was easy . . . amber! I admit that amber is more noticeable to oncoming drivers, but that's also a good thing . It's just that the eye sees so much better in amber-flooded areas that with white light . Glare is the reason . White light contains all the elements of light . . . including blue, yellow . . etc . . . so to cut down reflected glare, just narrow the source/supply lighting spectrum and you get less bounce-back from all the other wavelengths! The fact that amber approaches the red-end of the visable spectrum is also a good thing . The visual purple in the eye is less impacted with light in that area as can be seen in the red lights that are used in airport control towers and aboard ships and aircraft inside the control areas at night . Seeing white lights in the dark is easier if you haven't impacted that part of the retinal spectrum with white interior lights . After-effect and loss of vision is less a problem with red or orange lights when they get to the retina . Visual recovery is shorter and one can see better immediately after being bathed in red or orange than in white or blue . The flash of a camera comes to mind . . the after-effect of the white or blue flash is pretty powerful and might cause a driver to miss seeing for a long time .	SurferJoe46 (51)
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