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How Impossible Colors (Like Stygian Blue) Work
science.howstuffworks.com/impossible-colors.htm
What if there are colors within the visible spectrum that our brains can't perceive? In fact, there are. They're called impossible colors. But some researchers think they've discovered a way to see the impossible.
Can You Figure Out What Color These Black and White Logos Are Supposed to Be?
play.howstuffworks.com/quiz/can-you-figure-out-what-color-these-black-white-logos-are-supposed-be
Logos may be small but they've got a pretty huge job; they represent a whole business or product! When it comes to logo colors, will you hit the mark or be as blind as a bat? Take our quiz to find out!
Can You Identify Each of These Characters From the Mario Franchise?
play.howstuffworks.com/quiz/can-you-identify-each-of-these-characters-from-the-mario-franchise
Mario and his gang of friends have been appearing on our screens since the eighties. They walk, run, drive and fight in a variety of games. But have you been paying enough attention to who they are? Can you name all of these Mario franchise characters?
98% of People Can't Match All of These Flags With Their Countries! Can You?
play.howstuffworks.com/quiz/98-people-cant-match-all-these-flags-their-countries-can-you-learn
Flags have been used for centuries as symbols which bind people of a particular region together. If you're a globetrotter, or just simply love leafing through the pages in your atlas, do you think you can identify each of these flags? Take our quiz and find out!
Where does the color come from in purple cabbage?
science.howstuffworks.com/life/botany/question439.htm
Nature uses color in lots of different ways. Find out why some types of cabbage are purple and what this means.
How do smoke detectors intercommunicate?
home.howstuffworks.com/home-improvement/household-safety/question576.htm
Smoke detectors intercommunicate so that all detectors will sound if one is triggered. Find out how smoke detectors intercommunicate.
Peppers, Hot and Sweet
home.howstuffworks.com/peppers.htm
Peppers, both sweet and hot, are packed with vitamins and carotenoids. Learn about growing, harvesting, and serving sweet and hot peppers at HowStuffWorks.
How Is Maple Syrup Made?
recipes.howstuffworks.com/food-facts/question71.htm
You love the taste of it on your flapjacks, but just how do they make maple syrup?
Why Are School Buses Yellow?
science.howstuffworks.com/why-are-school-buses-yellow.htm
The iconic "school bus yellow" was the invention of an educator named Frank Cyr. But if yellow is so good for visibility, why don't all fire trucks use it too?
Gemstone Identification Quiz
play.howstuffworks.com/quiz/gemstone-identification-quiz
Gemstones can tell us so much about ourselves. But what will your knowledge of them say about you? Test it right here, with this quiz.