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Your search for "billion" returned 2,150 results
Why don't we live underground?
people.howstuffworks.com/live-underground.htm
To live underground takes some serious planning: We've adapted to sunlight and air on the surface. Learn how to live underground and why it matters.
How Your Heart Works
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The heart is a vital organ that basically serves as a pump. Learn about heart chambers and valves, blood flow, heart's electrical system and blood supply.
How NATO Works
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The North Atlantic Treaty Organization (NATO) is built on an alliance between 30 North American and European countries. But it's much more than that.
How Robot Armies Will Work
science.howstuffworks.com/robot-armies.htm
Robot armies could soon account for up to one third of all vehicles currently in service. Learn about robot armies and robot army development.
How Archaeology Works
science.howstuffworks.com/environmental/earth/archaeology/archaeology.htm
Archaeology is the study of ancient civilizations and human remains, such as buildings, art or trash. Learn about archaeology and archaeologists.
How Microsoft Works
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Microsoft is a software company. It makes money by selling its software for use on computers. Learn more about Microsoft in this article from HowStuffWorks.
Understanding the Conception Process
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Understanding the conception process can be helpful in getting pregnant. Visit HowStuffWorks to gain an understanding of the conception process.
How PEZ Works
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Where did PEZ come from? Learn more about PEZ candy and PEZ dispensers at HowStuffWorks.
How to Buy Good Inexpensive Wine
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Are you wondering how to buy good inexpensive wine? Check out this article and learn how to buy good inexpensive wine.
How Famine Works
science.howstuffworks.com/environmental/earth/geophysics/famine.htm
Famine might bring to mind historical tragedies or modern media coverage of tiny children with swollen bellies. But how does the unimaginable -- a widespread loss of food -- actually happen?