Search Results | light
Your search for "light" returned 6,612 results
How Corrective Lenses Work
science.howstuffworks.com/innovation/everyday-innovations/lens.htm
Eyeglasses are one of the most common sights in the world. Learn what goes into creating the lenses and how to read an eyeglass prescription.
Christmas Traditions Around the World
Each country has its own unique way of celebrating the Christmas season. Learn about Christmas traditions around the world, from England to Ethiopia.
Himalayan Salt Lamps: Health Benefits or Hype?
Himalayan salt lamps are touted as having healing properties. HowStuffWorks looks at the truth behind the hype.
Can a Bag of Water Keep Flies Away?
animals.howstuffworks.com/insects/water-bags-repel-flies.htm
Some people believe bags of water can keep flies away. Learn why people might hang bags of water to keep flies away and if the practice works.
Why Are You So Tired? 5 Most Common Sleep Mistakes
health.howstuffworks.com/mental-health/sleep/disorders/so-tired-5-most-common-sleep-mistakes.htm
HowStuffWorks looks at the most common sleep mistakes and how to fix them.
Is too much TV really bad for your eyes?
health.howstuffworks.com/human-body/systems/eye/tv-bad-for-eyes.htm
Is too much TV really bad for your eyes? Find out what science says about whether too much TV is really bad for your eyes.
What is astrophotography?
science.howstuffworks.com/astrophotography.htm
If your idea of photographing the stars has nothing to do with Hollywood, you might be interested in astrophotography -- the sky's literally the limit.
Can You Get More Than 11 Right on This Astronomy Quiz?
play.howstuffworks.com/quiz/can-you-get-more-than-11-right-on-this-astronomy-quiz
Does the solar system fill you with wonder? Are you an amateur stargazer fascinated by celestial bodies? Show off your knowledge of the universe with an out-of-this-world astronomy quiz!
What are motion cards and how do they work?
science.howstuffworks.com/question607.htm
A friend of mine showed me this card that the image changed depending on the angle that you view it at. How does that work?
Is there a way to make my sunglasses scratch-resistant?
science.howstuffworks.com/question613.htm
I recently bought a pair of mirrored sunglasses and they are already scratched. Isn't there a way to make them scratch-resistant?