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Why do cougars scream?
animals.howstuffworks.com/mammals/cougar-scream.htm
Cougars scream during mating season to attract the opposite sex. Learn how cougars scream and why humans don't hear these cougar screams too often.
How strong is a shark's bite?
animals.howstuffworks.com/fish/sharks/strength-of-shark-bite.htm
A shark bite is pretty scary to think about, but knowing the force behind a shark bite may ease your worries. Learn how strong a shark bite is.
What Is Pi?
science.howstuffworks.com/math-concepts/pi.htm
Whether the circle is as big as planet Mars or as small as a tennis ball, the ratio of its circumference divided by its diameter will always equal pi (3.14). But why?
Is there a hole in the universe?
science.howstuffworks.com/dictionary/astronomy-terms/hole-in-universe.htm
A hole in the universe was recently discovered by scientists at the University of Minnesota in 2007. Read about the discovery of a hole in the universe.
How can I have an out-of-body experience?
science.howstuffworks.com/science-vs-myth/extrasensory-perceptions/out-of-body-experience.htm
Out-of-body experiences (OBEs) are most often associated with sick or injured people, but scientists recently produced these experiences in healthy people. Learn how virtual reality can scramble your point of view.
Did the Beatles introduce yoga to the Western world?
people.howstuffworks.com/beatles-yoga.htm
The Beatles may have had a hand in introducing the Western world to yoga. Find out how much of an influence the Beatles had in introducing yoga to the West.
Pseudo-Ceramides Overview
health.howstuffworks.com/skin-care/problems/treating/pseudo-ceramides.htm
Pseudo-ceramides are synthetic lipids. Learn about how pseudo-ceramides work at HowStuffWorks.
Top 5 Weirdest Beauty Cream Ingredients
health.howstuffworks.com/skin-care/moisturizing/products/5-weirdest-beauty-cream-ingredients.htm
The top 5 weirdest beauty cream ingredients are really out there. Visit HowStuffWorks to see the top 5 weirdest beauty cream ingredients.
How can a speed bump harvest electricity?
auto.howstuffworks.com/fuel-efficiency/fuel-consumption/speed-bump-harvest-electricity.htm
How can a speed bump harvest electricity? Read how engineers could potentially get green energy from speed bumps and kinetic plates.
How the SteriPEN Works
electronics.howstuffworks.com/gadgets/travel/steripen.htm
The SteriPEN is a very popular travel gadget. Learn more about the SteriPEN at HowStuffWorks.