Pollution where?
Where would you want to go to escape light pollution?
The wilderness/somewhere far away from...Lights!
Not turning off these house brightness tools are a main cause of light pollution.
Lights...obviously.
These devices turn off lights for you by detecting movement/lack of movement.
Motion sensing lights. They are very cheap. You should buy them.
These baby___often crawl toward city lights instead of the ocean because of light pollution.
Sea Turtles.
In a big city you might see 50 of these, but in a dark park, you can see thousands.
Stars!
This northeastern city in the USA is visible from space at night.
NYC!
Cities like Vegas, Shang Hai, Tokyo, and London are also visible from space at night. This is a huge problem for people who live in these areas because the lights are actively ruining their sleep.
What cause of light pollution is worse?
Poor light design or excessive outdoor lighting?
Poor lighting design mainly do to unshielded streetlights.
outdoor lights that aren't guarded by these things are major contributers to light pollution.
Glare Guards!
at least 30 percent of all outdoor lighting in the U.S. alone is wasted, mostly by lights that aren’t shielded. That adds up to $3.3 billion and the release of 21 million tons of carbon dioxide per year!
Glare Guards save our stars along with our money!
___light is a hurtful light that screens give off.
Blue Light!
This hazy band of light across the night sky, our home galaxy, is now invisible to one-third of humanity.
The Milky Way!
True or false: The buildings that affect light pollution the most are: football stadiums because of their uncovered flood lights, and casinos because of their 24/7 bright advertisements.
FALSE!!!
Football stadiums are very bad for light pollution, but they aren't the worst. Casinos may seem bright on the inside but often have no windows. They are actually not horrible in terms of light pollution. Casinos have no windows because they don't want you to know how long you've been gambling.
The buildings with the most light pollution are commercial green houses, big malls, and tall office buildings.
what type of white light often has much higher levels of potentially harmful blue light?
"Cool white light." This light color is also sadly one of the most used outdoor lighting colors.
What white light color is the best for decreasing light pollution?
"Warm white lights." These lights emit a soft yellowish candle like glow.
___birds might sing at midnight because they think the sun is coming up.
Songbirds!
Also called "falling stars," these quick flashes of light are almost impossible to see if you are standing under a streetlight.
Meteors
What aisan country is so heavily polluted that it's entire population lives under sky's so bright that their eyes can never adapt to night vision?
Hint: It starts with Si.
Singapore!
A very overlooked cause of light pollution occurs on the road every night. This is a major contributer to light pollution in urban areas.
Hint: It's not stoplights or streetlights.
Headlights! The intensity and glare of modern headlights, particularly newer LED and HID systems causes headaches and sight loss.
What is the maximum Correlated Color Temperature (measured in Kelvin) recommended by DarkSky International for outdoor lighting?
3000 Kelvin.
__ is one of the 4 types of light pollution.
The definition is: Excessive brightness that causes visual discomfort.
Hint: You might want to turn of lights when watching a movie because of the__.
Glare!
This can lead to sleep disorders, confused nocturnal animals, and can slowly decrease sight.
example: Little Timmy went to the eye doctor and had 20/20 vision. He then moved to a very light polluted place for a year. When he came back he had 20/23 vision. This is because the lights strained his eyes alot.
I cast a glow above the snow, Santa knows me well, when my particles collide with nitrogen and oxygen I shed a green glow. Sadly, Those bright lights bleak out my beautiful sights.
What am I?
The northern lights!
What is the most light polluted city in the entire world?
Detroit, USA
Riyadh, Saudi Arabia
Denver-Aurora, USA
Toronto, Canada
Moscow, Russia
Chicago, USA
Miami, USA
Montréal, Canada
Mexico City, Mexico
Buenos Aires, Argentina
Moscow!
This is due to excessive upward-directed architectural lighting.
What is the 1# cause of light pollution?
The misuse and overuse of outdoor artificial light.
homeowners and cities often switch to "fully shielded" light fixtures. What is the specific design requirement for a fixture to earn this label?
The fixture must allow zero light to be emitted above a horizontal plane (90 degrees). All light must be directed downward.
___ ___ National park was graded a class 1 light pollution site on the Bortle scale.(Very little light pollution)
Great Basin national park! It is located in eastern Nevada.
am a map with no paper, a story with no ink one of me is a hunter, but in the haze, he cannot blink. He looks for his hounds and the hare at his feet, But the fog of the city makes his circle incomplete.
The Big Giant stands hungry in the northern air, But his spoon has vanished, leaving his cupboard bare. Because of the glow that humans have made, My lines are all broken, my pictures all fade.
I’m a scattered puzzle across the black dome, A guide for the lost who are trying to get home. You see only the pieces, the brightest and few, While the rest of my picture is hidden from view.
What am I?
Constalations!(any constilation name will be allowed)