Search Results | gravity
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The Ultimate Moon Quiz
play.howstuffworks.com/quiz/moon-quiz
Wolves supposedly howl at it, a fairy tale claims a cow once jumped over it and legends say if you look hard enough, there's a man in it. Yes, the moon has a prominent place in popular culture, but there's a lot you might not know about Earth's little orbiting friend. Why doesn't it have soil? Why is its gravity so important? And are we really thinking of going back soon?
How is L.A. like ancient Rome?
science.howstuffworks.com/environmental/green-science/la-ancient-rome.htm
Aqueducts are one thing held in common by both L.A. and Ancient Rome. Learn about the L.A. aqueducts and how they harmed the Owens Valley.
How Sewer and Septic Systems Work
home.howstuffworks.com/home-improvement/plumbing/sewer.htm
Each time you flush the toilet or wash something down the drain, you create sewage. Find out where it goes before it flows into a river near you!
This Physics Quiz Is Really Hard, So We'll Be Impressed If You Get Even 10 Right
How will you REACT to this quiz? We're bringing in the big brains of physics to see if we can stump you. Do you have what it takes to pass without cheating?
Calculating the Mass of Earth: How Much Does Earth Weigh?
science.howstuffworks.com/environmental/earth/geophysics/planet-earth-weigh.htm
The Earth is incredibly heavy. How do scientists determine the weight of the Earth?
How much gold is there in the world?
money.howstuffworks.com/question213.htm
I recall hearing once that all of the world's gold could be formed into a cube measuring 18 feet by 18 feet on a side, or something like that. Is that true? If so, how much would it weigh and how much would it be worth?
How Hot Air Balloons Work
science.howstuffworks.com/transport/flight/modern/hot-air-balloon.htm
Hot air balloons are about as simple as flying can get - no engine, no moving parts really, and very little the pilot can do to control the vehicle. Find out what it's like to fly a hot air balloon!
How do Astronauts Poop in Space?
science.howstuffworks.com/bathroom-in-space.htm
A bathroom in space requires unique engineering that is different from a bathroom on Earth. Learn about the features of a bathroom in space.
Will certain sexual positions help raise my likelihood of conception?
Will certain sexual positions help raise my likelihood of conception? Learn if certain sexual position will help raise my likelihood of conception in this article.
Earth: A Primer on the Third Rock From the Sun
science.howstuffworks.com/earth.htm
Earth is an enormous and extremely complex planet. Learn about the inner workings of the planet Earth and find out what forces are constantly at work on Earth.