The 2009 Solar Decathlon has turned the National Mall into a solar village.
Competitors from across the country and around the world have brought their designs to Washington, DC, to compete against other university and college students.
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Image credit: David DeFranza
Spread the love with flower seed bombs, dark chocolate fondue, and more.
Amazing sculptures carved from old books, a cycling highway, and more.
Let Mother Nature do the work for you at these international skating spots.
This clever low-tech design helps food keep without refrigeration.
This pocket watch is a blast from the past, with an eye for the future.
This weekday vegetarian recipe is a delicious, refreshing take on potatoes
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