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Your search for "environmental radioactivity" returned 42 results
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.
Top 5 Alternative Power Systems
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Alternative energy isn't so "alternative" anymore. It's in the news, on political platforms, atop roofs and filling gas tanks, and the options have grown enough to change the conversation: It's not whether we want it, but which kind we want.
How Artificial Geothermal Energy Works
Artificial geothermal energy is made by adding water to naturally hot rocks. Learn about artificial geothermal energy.
Can You Pass a 1980s Trivia Quiz?
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The '80s were an incredibly eventful decade of the 20th century. From wars to political standoffs to wacky cultural changes, the '80s had it all. Can you pass muster against our tough '80s quiz?
How Sinkholes Work
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Sinkholes are much more than holes in the ground. Learn how sinkholes can cause the Earth to swallow up you, your home and your car.
Do Plants Feel Pain? A Primer on Plant Neurobiology
science.howstuffworks.com/life/botany/plants-feel-pain.htm
Though they may be stuck in one place, plants have proven to possess a surprising array of capabilities. But the ability to feel pain? Scientists are learning that the possibility isn't as crazy as it sounds.
How is green nanotechnology being used?
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How is green nanotechnology being used? Learn about green innovations and technologies in the field of green nanotechnology.
How Geothermal Energy Works
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Geothermal energy is clean, abundant and renewable. Learn about geothermal energy, geothermal heat pumps and geothermal power plants.
Top 5 Innovations in the Electric Power Industry
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Would you buy a home without functioning power outlets? We've come to depend on electric power for many of our day-to-day activities. What innovations have been made in the electric power industry? Keep reading to find out.
How Plasma Converters Work
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Plasma converters generate electricity for our homes by burning trash. Learn about plasma converters and see pictures of plasma converters plants.