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Light Pollution

Light pollution is the overuse of artificial lighting commonly found in towns and cities worldwide. Light pollution drowns out the light from very distant stars and nebulae, and is very bad for astronomers.

67 Questions

What impact does light pollution have on astronomy?

No, it would not. Telescopes located on mountaintops ... above most of

the atmosphere ... work much better than telescopes located in valleys do.

And, viewed from the moon, where there's no atmosphere at all, the stars

are plainly visible in the sky even when the sun is too.

Why is the night sky sometimes orange?

Because of the moisture in the air, it reflects light differently. especially if a storm is coming. The more orange, the worse the storm.

This could also be caused from the reflection of the setting sun which tends to cause brilliant hues of orange, pink and coral.

Also maybe the city lights and/or pollution in your city is a factor.

Your 1995 Aspire's airbag light blinks code 34 is this a serious problem?

Any SRS warning light with a corresponding code is serious. Take it to a professional as this is not a DIY repair.

How is light pollution is caused?

Light pollution is caused by the overuse of artificial lighting - particularly the lights from brightly lit buildings and street lights and as well as it washing out views of many distant stars, it also can affect our circadian rhythms (sleep cycles).

Where can you get outdoor lights that will not cause too much light pollution?

Home Depot, Lowe's, or any other grocery store or hardware store has lights like this available. I would suggest Home Depot as they usually offer the best products and prices.

When did light pollution become a problem?

Astronomical light pollution started as street and road lighting became widespread from the early 20th century. It was bad enough by the 1980's for the dark sky movement to gather momentum. Local light pollution, for instance from obtrusive security lights, is a more recent problem, perhaps from about the 1970's.

What are the strange lights that randomly fly across my window once almost every night and when i look outside I see nothing that could make the light?

If your window is facing towards the street or even to the side, it could be a car passing by. If not, then its probably an alien waiting to abduct you. I'd advise you to sign up for karate so u can beat up the alien that tries to capture. However if its not a UFO, maybe its something in you room reflecting off the window like a watch or something shiny.

Does light pollution effect how you see planets?

In short, yes, but it really depends on how far the planets are from Earth. Planets such as Venus and Jupiter can be seen literally as soon as the sun has set, so nearby planets will be visible in light-polluted cities.

Does neon gas cause light pollution?

Light is what causes light pollution. Neon by itself won't do a thing unless used in a lit neon sign.

What is the City most polluted by light pollution?

Los Angeles Greater area is the most polluted city in the United States.

Why do organic dominated soils absorb more light in visible wavelengths than other types of soil?

Color, moisture, organic content, pH, structure, temperature and texture are reasons why organic dominated soils absorb more light in visible wavelengths than other types of soils. Organic matter, be it compost through human intervention or humus through Mother Nature's involvement, is dark-colored, and dark colors absorb more heat and light whereas light colors are heat-reflective. A carbon basis, inclusion of iron among its nutrients, and moisture retention also serve as key factors in spectral visibility.

Is there any light pollution in London?

Yes, when there is a clear sky the sky always remains a dark blue colour throughout the night.

Why does light pollution stops us from seeing the stars?

Too much excess lighting sends light up into the atmosphere, which scatters the light back to the Earth drowning out all the many celestial objects which there are to see.

How does light pollution harm astronauts?

Light pollution does not affect astronauts, it affects astronomers.

Is there a way to reduce severe recoil of a light twenty Browning A5 shotgun?

There shouldn't be severe recoil with a Browning A5. Check the friction rings and make sure they are set for the correct loads: Light vs Heavy Loads. If the friction rings are set for light loads, and you are shooting high brass, then it will kick harder than it needs to be.