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Your search for "theory" returned 1,973 results
Why is it bad luck to light three cigarettes with one match?
people.howstuffworks.com/why-is-it-bad-luck-to-light-three-cigarettes-with-one-match.htm
Be careful on your next smoke break; it could be your last. Learn why it's bad luck to light three cigarettes with one match at HowStuffWorks.
10 Things People Believe About the Illuminati
people.howstuffworks.com/10-things-people-believe-about-illuminati.htm
Some people think the Illuminati controls the price of oil and pop music. See 10 things people believe about the Illuminati to learn more.
How Motion Sickness Works
health.howstuffworks.com/mental-health/neurological-conditions/motion-sickness.htm
Although motion sickness is very common, scientists don't really know why we get it. Learn all about this condition at HowStuffWorks.
How to Play a Guitar Lick in 3 Easy Steps
entertainment.howstuffworks.com/guitar-lick-steps.htm
Learning guitar licks can help you on your way to becoming the rock star you've always dreamed about. Learn about playing guitar licks.
What do free radicals have to do with aging?
health.howstuffworks.com/wellness/aging/aging-process/free-radicals-aging.htm
Is there a connection between free radicals and aging? If so, how do we stop free radicals from destroying cells? Learn about free radicals and aging.
Muons: The Subatomic Particles Shaking Up the World of Physics
science.howstuffworks.com/muon.htm
First discovered in the late 1930s, muons are passing through you and everything around you at a speed close to light, as cosmic rays strike particles in our planet's atmosphere. So what are muons and how are they informing the new physics?
Why 'Poop' and 'Wiggle' Are Funny Words, According to Science
people.howstuffworks.com/why-poop-and-wiggle-are-funny-words-according-to-science.htm
HowStuffWorks looks at a study where scientists parsed nearly 5,000 words to find which ones people thought were funniest and why.
How Black Holes Work
science.howstuffworks.com/dictionary/astronomy-terms/black-hole.htm
A black hole occurs when a massive star dies -- its enormous mass implodes and becomes so heavy that it bends space. So how do astronomers detect something that they can't see?
Was there really a pied piper of Hamelin?
history.howstuffworks.com/history-vs-myth/pied-piper.htm
"The Pied Piper of Hamelin" is a classic fairy tale, but does it belong in the history books? Scholars think a real pied piper might've existed -- learn why.
Does everyone have claustrophobia?
health.howstuffworks.com/mental-health/mental-disorders/claustrophobia.htm
Claustrophobia is the term for fear of enclosed spaces -- it's physical and psychological. Read about claustrophobia and some common claustrophobic symptoms.