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What are the odds there is life in outer space?
science.howstuffworks.com/space/aliens-ufos/extraterrestrial-life-odds.htm
Are we alone? Jodie Foster's character in "Contact" didn't think so, and neither do the scientists who've been listening for an extraterrestrial message for decades.
Desalination Plants: The Future of a Sustainable Water Supply
science.howstuffworks.com/environmental/earth/oceanography/desalination.htm
Desalination is the process of removing the salt from seawater, which turns the water into fresh drinking water. Learn about desalination.
How Space Elevators Will Work
science.howstuffworks.com/space-elevator.htm
Space elevators are explained in this article. Learn about space elevators.
How Rammed Earth Homes Work
home.howstuffworks.com/rammed-earth-home.htm
Rammed earth homes and buildings have been around as long as people could pack dirt into a sturdy form. Learn how these rammed earth homes are built.
Which Planets Are Considered 'Earth-like' and Why?
science.howstuffworks.com/other-earth.htm
Exoplanets are planets that orbit stars other than our sun. Read about exoplanets and find out how scientists are searching for exoplanets with life.
Are You Smarter Than a Sixth Grader?
play.howstuffworks.com/quiz/are-you-smarter-a-sixth-grader
We will quiz you on math, science, grammar, social studies, and the arts to determine if you make the grade. Will you be ahead of your class or sitting in the corner with the dunce hat on your head?
What's a beer battery?
science.howstuffworks.com/environmental/energy/beer-battery.htm
A beer battery uses a brewery's waste water to generate electricity. Learn how a beer battery works and about microbial fuel cells.
Are clay roofing tiles a green choice?
home.howstuffworks.com/home-improvement/construction/green/clay-roofing-tiles-green-choice.htm
Are clay roofing tiles a green choice? Visit HowStuffWorks.com to learn if clay roofing tiles a green choice?
Capricorn Compatibility in Love, Friendship and Work
entertainment.howstuffworks.com/horoscopes-astrology/capricorn-compatibility.htm
If you're a Capricorn, which signs are you most compatible with in love, friendship and work? We talk with two astrologers to find out.
Does a diesel engine equal fuel cost savings?
auto.howstuffworks.com/fuel-efficiency/fuel-economy/does-diesel-engine-equal-fuel-cost-savings.htm
Does driving a vehicle with a diesel engine always translate into fuel cost savings? Learn more about diesel fuel economy at HowStuffWorks.