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Heroes Unmasked: How secret are secret identities?
entertainment.howstuffworks.com/arts/comic-books/secret-identity.htm
Is a 'secret identity' really secret anymore? Comic book pundit Matt Hunt reveals just how many characters are in on the superheroes' alter-egos.
What is a levee?
science.howstuffworks.com/engineering/structural/levee.htm
Whether they make you think of Hurricane Katrina or Led Zeppelin, levees are a critical safety feature for low-lying areas located near water. Why do they break?
How the Orion CEV Will Work
science.howstuffworks.com/cev.htm
NASA needs a vehicle capable of carrying crew and payloads to Earth orbit, the moon and Mars. Learn about the basics of the new crew exploration vehicle.
How Exchange Rates Work
money.howstuffworks.com/exchange-rate.htm
Exchange rates are something you typically pay attention to when you're traveling abroad. Learn about exchange rates and find out why exchange rates fluctuate.
Is it OK for babies to watch TV?
lifestyle.howstuffworks.com/family/parenting/babies/baby-tv.htm
Baby TV watching may do more harm than good, according to a recent study. Find out why baby TV watching may slow a child's mental development.
The Philosophy of Yin and Yang Is Central to Chinese Culture
health.howstuffworks.com/wellness/natural-medicine/chinese/yin-and-yang.htm
The yin and yang meaning is the idea that the world is expressed through an endless cycle of polar opposites, such as hot and cold.
What's HVAC? Heating and Cooling System Basics
home.howstuffworks.com/home-improvement/heating-and-cooling/heating-and-cooling-system-basics-ga.htm
Heating systems keep our homes warm during the winter, and air conditioning keeps us cool in summer. But do you know how HVAC systems work?
Broccoli
home.howstuffworks.com/broccoli.htm
Broccoli boasts more nutrients than any other vegetable. Find out more about this flavorful, essential vegetable.
Watermelon
home.howstuffworks.com/watermelon.htm
Watermelon is a vine related to the cucumber that produces fruits that can weigh anywhere from 5 to 100 pounds. Learn more about watermelon.
California Black-Eye Peas
home.howstuffworks.com/california-black-eye-peas.htm
California black-eyed peas are tender annuals which can be bushy or climbing plants. Learn more about black-eyed peas.