when i was growing up the street lites where white thats the 70s,,who the hell come up with the orange lite idea ,awful,dreary lite, an artist at the modern art gallery in kilmainem did a exhibiton on that dreadful orange lite,they showed how it effects colour, so describing an incident and trying to say what colour something was is,well would stand up in court.

example I noticed at the exhibiton pink looked brown or something ,its few years now kinda forget. thanks

If I understand you correctly, you are making refrence to the effect yellow street lights have in darkness on the colour reflected from objects such as cars or coats that we end up seeing.

I have heard about court cases where when witnesses gave the colour of cars alegeledy involved in criminal incidences they were proved wrong because, say for example a blue or red car will lock the same colour under a yellow street light.

The light pollution issue is a major one, but as of yet it is still poo poo'd by
politicians and the like....
It's kind of like the Surfers Against Aewage campagin....
It's only when something directly effect you that you take notice.

It's only when something directly effect you that you take notice.

Good point Frank - but I think a lot of people will take notice in January when ESB prices rocket by 20 odd percent. Hopefully that will be domestic houses, businesses, local councils and Government organisations. And with the whopping hike in gas recently, I'd say energy efficiency will become a big deal over the winter - because it'll hit people where it hurts most - in their pockets. And the politicians, in an election year, will get it in the neck from me if they bother to call round.

I just spent 100 quid on replacing most of the bulbs in the house with the energy efficient ones. Hopefully they'll lessen the pain a bit. That said, next door just got a new extension finished - complete with gazillion watt security light :cry:

Dave

....and the funny thing is Dave that it is proven security lights don't really
make a hill of beans of a difference!
In fact, in one study carried out by the Met Police in London.
The light actually helped the intruders break in!

Interesting link to a "primer" on sodium streetlights.

www.nezumi.demon.co.uk/nonad/spectra.htm

One interesting quote from it:
"With UK streetlighting...as much as 30% goes straight up."

"Watling Street" is a very old English term for the Milky Way.
Probably trying to light up Watling Street as well!

Peter.

thanks all for replys, im at blanchdsrstown area,i dont think theres any clubs in the area,also miscalculation on my behalf,i was saying about alkaid been to low with m51 beneath it ,and right in the lite polution band,i was thinking back a few weeks ago when i saw the plough was in a diffrent position,im rusty on certain aspects of astron, thanks


typo would stand up in court,change to wouldnt.

this is the responce i got my posts mixd up, ignore the thank you all one for this forum.sory

i was making a referance to the fact,that street lites were white and showed colour as it is, things looked nicer at least ,and iam talking about those sodium orange lites that are all over the place aggekkk, you understood me correctly that cars clothes etc do not show up correctly in sodium awful orange lite, blue looks purple,???, im against lite pollution 100%


typo would stand up in court, change to wouldnt stand up in court.

i was making a referance to the fact,that street lites were white and showed colour as it is, things looked nicer at least ,and iam talking about those sodium orange lites that are all over the place aggekkk, you understood me correctly that cars clothes etc do not show up correctly in sodium awful orange lite, blue looks purple,???, im against lite pollution 100%

The yellow sodium lamps just show one wavelgth, so its impossible to determine colour.

Most white streetlights are high pressure sodium lamps which have a broader spectrum but are not white either. Nevertheless they are good enough to determine colour, and thats why they are now used in many new areas and in upgrades.

Ah yes, mention of campaigns brings back memories of one down home.

The local Lough Derg action group started a campaign called Save Our Lough Derg. Car stickers, etc. were distributed widely.

Unfortunately, Dustin the Turkey started a campaign around the same time titled Stamp Out Line Dancing. Notice the similarity in the acronyms?

The bottom line was that the residents committee wrote to RTE to ask them rename Dustin's campaign as people with car stickers in our area were getting funny looks. Needless to say, RTE probably had a good guffaw over the "culchies" complaining.

Some idiot in the locality now has his house ... plus everyone else's around ... brilliantly lit up. Even worse, some of his wall-mounted lights look very like car headlights coming at you when driving at night and it's confused the hell out of me a few times. Wait 'til someone crashes and then he'll have a serious problem. I may even "fall" into a ditch off my bike some night and say I was swerving to avoid what I thought was an oncoming car. Might convince the local council then to get him take down, or at least reposition, those bulbs.

lolzzzzzz car headlights, i do take your l derg issue serious,but i can imagine what those lites must b like for you ,your comments are humourous

In fact, in one study carried out by the Met Police in London.
The light actually helped the intruders break in!

the way I look at it is that "they cant steal what they cant see"..