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How the International Space Station Works
science.howstuffworks.com/international-space-station.htm
In 1984, President Ronald Reagan had a vision for a permanently inhabited space station. Today that vision is a reality we know as the International Space Station.
How Light Propulsion Will Work
science.howstuffworks.com/light-propulsion.htm
Like many new technologies, light propulsion was originally conceived as a tool of war and national defense. But the "Star Wars" missile defense system may eventually send rockets, rather than missile-destroying lasers, into space.
How Geothermal Energy Works
science.howstuffworks.com/environmental/energy/geothermal-energy.htm
Geothermal energy is clean, abundant and renewable. Learn about geothermal energy, geothermal heat pumps and geothermal power plants.
5 Most Amazing Caves
science.howstuffworks.com/environmental/earth/geology/5-amazing-caves.htm
The Doll's Theater of Carlsbad Caverns looks otherworldly and took ages to form. What other incredible sights await us below ground?
Top 5 Energy-efficient Computers
science.howstuffworks.com/environmental/green-tech/sustainable/5-energy-efficient-computers.htm
Energy efficiency is starting to rank right up there with speed and power in terms of desirable attributes for a computer. What are five of the most energy-efficient computers on the market?
How the Cadillac Provoq Works
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The Cadillac Provoq may be luxurious, but it also sports eco-friendly materials and high fuel efficiency. Read about the Cadillac Provoq in this article.
Will we soon be extinct?
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A mass extinction on Earth is long overdue, according to population ecologists. Find out what Earth's fossil record may be telling us about our future.
How to Allergy-Proof Your Home Climate Control System
In order to maintain an allergen-free home, it is important to monitor your home climate systems. Learn more.
What's HVAC? Heating and Cooling System Basics
home.howstuffworks.com/home-improvement/heating-and-cooling/heating-and-cooling-system-basics-ga.htm
Heating systems keep our homes warm during the winter, and air conditioning keeps us cool in summer. But do you know how HVAC systems work?
How the Ferrari FF Works
auto.howstuffworks.com/ferrari-ff.htm
Does the four-seater Ferrari FF measure up to the performance of other Ferraris? Read details and specs for the Ferrari FF at HowStuffWorks.