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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.
How Harry Potter's Wand Works
entertainment.howstuffworks.com/harry-potter-wand.htm
Harry Potter's wand is a powerful tool that is used primarily to cast magic spells. Learn about the origins and many uses for Harry Potter's wand.
How Fear Works
science.howstuffworks.com/life/inside-the-mind/emotions/fear.htm
Fear is the brain's reaction to a stimulus where chemicals are released that raise the heart rate. Learn about fear and the different fear responses.
Jellyfish Don't Have Brains, But They Still Sleep
animals.howstuffworks.com/marine-life/do-jellyfish-sleep-brain.htm
Do jellyfish sleep? Learn more about a new study on the need for sleep in animals, and in jellyfish, in this HowStuffWorks article.
How Bordetella Vaccines Work
animals.howstuffworks.com/pets/pet-travel/bordetella-vaccine.htm
The bordetella vaccine prevents dogs and other pets from contracting kennel cough, or the canine common cold. Learn more about the bordetella vaccine.
How Butterfly Gardens Work
home.howstuffworks.com/gardening/garden-design/butterfly-garden.htm
Butterfly gardens can attract and conserve butterflies as habitat loss and pesticide use decrease their numbers. Learn all about butterfly gardens.
Starfish Use Intricate Water Whorls as a Survival Mechanism
animals.howstuffworks.com/marine-life/starfish-use-intricate-water-whorls-survival-mechanism.htm
Tiny starfish larvae get food and swim by creating swirls of water. See the starfish in action at HowStuffWorks Now.
How Entomophagy Works
people.howstuffworks.com/entomophagy.htm
Entomophagy is the practice of eating insects. Bugs are nutritious and some of them taste great, but in the Western world entomophagy is a cultural taboo. Would you eat bugs?
How Bug Zappers Work
home.howstuffworks.com/bug-zapper.htm
Bug zappers can help keep your backyard free of pesky insects. Find out how bug zappers kill insects and take a look at the inside of a bug zapper.
How Sock Hops Worked
people.howstuffworks.com/sock-hop.htm
Sock hops can be a lot of fun, but where did they come from? Learn about sock hops at HowStuffWorks.