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How Millimeter Wave Scanners Work
science.howstuffworks.com/millimeter-wave-scanner.htm
If you've traveled recently, you probably raised your arms above your head and waited for a millimeter wave scanner to do its screening thing. During those 10 seconds or so, did you ever wonder exactly how the device produced your image?
10 Rules of Gym Etiquette People Are Constantly Ignoring
people.howstuffworks.com/10-gym-etiquette-rules.htm
How is your gym etiquette? See 10 gym etiquette rules to see which ones you might be ignoring.
10 Amazing, Beautiful, TERRIFYING Spiders
animals.howstuffworks.com/arachnids/10-amazing-spiders.htm
Spiders have been on Earth a whole lot longer than we have - 380 million years, to be precise - and number more than 38,000 separate species worldwide. See 10 of the most beautiful and scary of these arachnids.
Can You Read the Word If We Give It to You Upside Down?
play.howstuffworks.com/quiz/can-you-read-the-word-if-we-give-it-to-you-upside-down
Look, we're not going to swear you're the next Einstein if you ace this upside-down words quiz, but we do promise it's a great way to stretch your brain and get those neurons fired up. And with only 26 letters in the alphabet, how hard can it be to get a perfect score?
Where do butterflies get their striking colors?
animals.howstuffworks.com/insects/butterfly-colors.htm
Butterfly color is some of the most striking in nature. Learn how butterfly wings use ordinary color and structural color.
Are UFOs Real? Close Encounters of the First, Second and Third Kinds
science.howstuffworks.com/space/aliens-ufos/ufo-classification.htm
UFO siting classification Classification has six categories: nocturnal lights, daylight discs, radar/visual cases, and close encounters. Read more about UFO classification.
What if I accidentally ended up locked in a walk-in freezer?
science.howstuffworks.com/innovation/science-questions/locked-in-freezer.htm
Being locked in a freezer like the ones found in restaurants could lead to hypothermia if you're in there too long. Learn about getting locked in a freezer.
5 Rules of Office Dating Etiquette
health.howstuffworks.com/relationships/tips/5-rules-of-office-dating-etiquette.htm
There are some important rules of office dating etiquette. Visit Discovery Health to see five rules of office dating etiquette.
How Mousetrap-powered Cars Work
auto.howstuffworks.com/mousetrap-powered-car.htm
Have you ever tried building a mousetrap-powered car? Read about mousetrap-powered cars at HowStuffWorks.
How to Make a Schedule for Kids After School
lifestyle.howstuffworks.com/family/activities/how-to-make-schedule-for-kids-after-school.htm
Want to know how to make a schedule for kids after-school? Visit HowStuffWorks Family to learn how to make a schedule for kids after-school.