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Your search for "scientific theory" returned 559 results
Space Trivia
play.howstuffworks.com/quiz/space-trivia
If stargazing is your jam and you know that you could be the next Neil deGrasse Tyson, this celestial trivia quiz will rock your whole galaxy! Are you ready to shoot for the stars?
How Aliens Work
science.howstuffworks.com/space/aliens-ufos/alien-physiology.htm
Alien life forms would probably differ from those on Earth but still adhere to certain principles. Learn about astrobiology and the search for alien life forms.
What Did Isaac Newton Discover? 10 of Sir Isaac Newton's Inventions
science.howstuffworks.com/innovation/famous-inventors/5-isaac-newton-inventions.htm
Almost 300 years after his death, Sir Isaac Newton remains one of the most influential thinkers in history. What are some of his most enduring inventions?
What are the origins of democracy?
history.howstuffworks.com/history-vs-myth/origins-democracy.htm
What are the origins of democracy? Read about politics in the United States (which is actually a republic), the ancient Athenians and the origins of democracy.
How did people discover wine?
recipes.howstuffworks.com/food-facts/discover-wine.htm
How did people discover wine? This upscale beverage had a very down-to-earth beginning. Learn more at HowStuffWorks.
How Wireless Power Works
electronics.howstuffworks.com/everyday-tech/wireless-power.htm
Unless you are particularly organized and good with tie wrap, you probably have a few dusty power cord tangles around your home. Find out how methods of wireless power transmission could cut the clutter or lead to clean sources of electricity.
5 Reasons Parasites Are Beneficial to Earth
science.howstuffworks.com/environmental/green-science/5-reasons-parasites-beneficial.htm
You probably think all parasites are disgusting little critters, but that's not always the case. Several are actually critical to the planet.
10 of the World's Most Groundbreaking Futurists
electronics.howstuffworks.com/future-tech/10-groundbreaking-futurists.htm
These futurists have amazing minds and some amazing predictions. See 10 of the world's most groundbreaking futurists here.
How Ghosts Work
science.howstuffworks.com/science-vs-myth/afterlife/ghost.htm
Ghosts are the spirits of dead people that have either returned from the afterlife, or not moved on to it. Learn about ghosts and explanations for ghosts.
Was there really a curse on King Tutankhamen's tomb?
history.howstuffworks.com/history-vs-myth/king-tut-tomb.htm
King Tut's tomb is rumored to have a curse because of the tragedies that have happened since its opening. Learn about King Tut's tomb and the King Tut curse.