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Is humid air heavier than dry air?
science.howstuffworks.com/nature/climate-weather/atmospheric/is-humid-air-heavier-than-dry-air.htm
If humid air is just air plus water, then it has to be heavier than dry air, right? Sure, if it was only a matter of simple addition, but molecular physics is a lot like a bouncer at a club: Nothing gets in unless something else goes out.
Do Flying Cockroaches Target Your Face, or Does It Just Feel That Way?
animals.howstuffworks.com/insects/flying-cockroaches-behavior-target-face.htm
How do flying cockroaches act in the presence of a gigantic human? Learn more about cockroach behavior in this HowStuffWorks article.
What is theory of mind?
people.howstuffworks.com/theory-of-mind.htm
Theory of mind is the theory for how most humans understand that another person has different desires and feelings. Learn more about theory of mind.
1911 Excelsior
auto.howstuffworks.com/1911-excelsior.htm
The 1911 Excelsior motorcycle was a product of Schwinn, better known for bicycles. See pictures and learn about the 1911 Excelsior motorcycle.
Three Exercises for a Tighter You
health.howstuffworks.com/wellness/diet-fitness/exercise/three-exercises-for-a-tighter-you.htm
If you're going to commit to getting fit, you want to get the biggest bang for your buck. Learn three of the best exercises any woman can do to effectively lose weight and strengthen muscles.
The Ultimate Kissing Quiz
play.howstuffworks.com/quiz/kissing-quiz
It can be a sign of love, grief or respect worldwide. Kissing is a natural act that gives millions of people physical and psychological satisfaction, but where did it originate? Why does it make us feel good?
Trivia Quiz of the Day
play.howstuffworks.com/quiz/trivia-quiz-of-the-day
Are you a wealth of unless information? Do you belong on "Jeopardy?" Do you win every trivia night at the pub? Then, this quiz is for you! Test your smarts with this assortment of random trivia questions.
Top 10 Myths About the Brain
science.howstuffworks.com/life/inside-the-mind/human-brain/10-brain-myths.htm
You only use 10 percent of that big, wrinkled mass of smarts -- unless you listen to Mozart. At least, that's what we've heard about the brain. But how many common brain beliefs are just plain wrong?
Greek Weddings
lifestyle.howstuffworks.com/weddings/planning/wedding-ceremonies/greek-weddings.htm
Greek weddings feature several traditions like candles, joining hands, the crowning, and the dance of Isaiah. Read more about Greek weddings.
The Flower Identification Quiz
play.howstuffworks.com/quiz/the-flower-identification-quiz
Flowers are one of the few things in this world that can convey hundreds of feelings. But while you may know what they mean, do you know what they are called? Find out if you can correctly identify all the flowers in this quiz!