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How Gas Masks Work
science.howstuffworks.com/gas-mask.htm
Gas masks are used to filter out harmful gas and particles from the air industrial workers breathe. Learn about gas masks and how gas masks are made.
How does the aging process affect driving ability?
health.howstuffworks.com/wellness/aging/aging-process/age-and-driving.htm
Elderly drivers can suffer from vision deterioration and slowed reaction times. Find out how age affects safe driving and how to recognize the danger signs.
How can I have an out-of-body experience?
science.howstuffworks.com/science-vs-myth/extrasensory-perceptions/out-of-body-experience.htm
Out-of-body experiences (OBEs) are most often associated with sick or injured people, but scientists recently produced these experiences in healthy people. Learn how virtual reality can scramble your point of view.
Why Is Yawning Contagious?
science.howstuffworks.com/life/inside-the-mind/human-brain/contagious-yawn.htm
Contagious yawning is associated with the same parts of the brain that deal with empathy, according to a recent study. Learn about contagious yawning.
Top 5 Tips for Choosing a Daily Facial Moisturizer
health.howstuffworks.com/skin-care/daily/tips/5-tips-for-choosing-a-daily-facial-moisturizer.htm
Choosing a daily facial moisturizer is important to your skin's health. Visit HowStuffWorks to see the top 5 tips for choosing a daily facial moisturizer.
When to Use Light Reflecting Makeup
lifestyle.howstuffworks.com/style/makeup/face/when-to-use-light-reflecting-makeup.htm
Are you wondering when to use light-reflecting makeup? Learn when to use light-reflecting makeup in this article.
Virgo Rising Traits: The Analytical Nature of This Ascendant
entertainment.howstuffworks.com/horoscopes-astrology/virgo-rising.htm
Discover the traits of Virgo Rising, from their analytical nature to their impact on relationships. Uncover how this ascendant shapes your personality!
9 Facts About the Persian Cat, King of the Lap-Nappers
animals.howstuffworks.com/pets/persian-cats.htm
HowStuffWorks finds out whether Persian cats really came from Persia; how much they cost and whether they are friendly.
Can You Identify These New Zealand Fish Species?
play.howstuffworks.com/quiz/can-you-identify-these-new-zealand-fish-species
A variety of both fresh and saltwater fish inhabit the waters of our world. Today, we're taking a look at 40 amazing fish that are native to New Zealand. Think you can name them all? Try our quiz now to test your New Zealand fish knowledge!
How Holograms Work
science.howstuffworks.com/hologram.htm
If you want to see a hologram, you don't have to look much farther than your wallet. But the most impressive holograms are large scale and illuminated with lasers or displayed in a darkened room with carefully directed lighting. Learn how a hologram, light and your brain work together make clear, 3-D images.