Search Results | light pollution
Your search for "light pollution" returned 337 results
Could Too Much Screen Time Mean Obesity or Cancer?
Recent research has revealed new concerns about light exposure. Learn how artificial lighting and childhood obesity are linked at HowStuffWorks Now.
How the Northern Lights Illuminate the Night Sky
science.howstuffworks.com/nature/climate-weather/atmospheric/question471.htm
How does the aurora borealis (the Northern Lights) work? What causes it? Why can you only see it in the North? Are the myths about it producing sound true?
Where Are the Northern Lights and Southern Lights?
science.howstuffworks.com/nature/climate-weather/atmospheric/10-spots-to-watch-auroras.htm
Auroras themselves aren't rare, but spotting one can be tricky: You need a clear, dark sky within one of the auroral zones. What are 10 spots that up the odds a bit?
That Faint Light in the Night Sky Could Be the Gegenschein
science.howstuffworks.com/gegenschein.htm
The gegenschein, "faint light" in German, occurs under very specific astronomical conditions when the sun reaches the exact opposite of Earth from wherever you're stargazing.
Stellarium Is the Free 'Planetarium' for Your Computer
science.howstuffworks.com/astronomy-software-stellarium.htm
Not sure what you're seeing in the night sky? Astronomy software such as Stellarium makes stargazing easier by helping to explain what you're seeing when you look at the stars.
How Much Coal Is Required to Run a 100-watt Light Bulb 24 hours a Day for a Year?
science.howstuffworks.com/environmental/energy/question481.htm
Where electricity is produced from a coal fired power station, how much coal is required to run a 100-watt light bulb 24 hours a day for one year?
Can You Watch the Sunset and Moonrise at the Same Time?
science.howstuffworks.com/moonrise-and-sunset-together.htm
Surely you've watched tons of sunsets in your lifetime. But have you ever seen the sunset and the moonrise simultaneously? Is that even possible?
Is China Launching Fake Moon a Bright Idea?
science.howstuffworks.com/is-china-launching-fake-moon-bright-idea.htm
China is planning launch a 'fake' moon to provide extra illumination to Chengdu, Sichuan. HowStuffWorks looks at why.
How Telescopes Work
science.howstuffworks.com/telescope.htm
For centuries, curious observers have probed the heavens with the aid of telescopes. Today, both amateur and professional scopes magnify images in a variety of ways.
How Light Emitting Diodes (LEDs) Work
electronics.howstuffworks.com/led.htm
Light emitting diodes form numbers on digital clocks, send data from remote controls and illuminate watches - the simple genius of the design makes it infinitely applicable. And now, LEDs are affordable.