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Do buildings sweat?
 Even Michelangelo had to deal with efflorescence -- white deposits that appear on masonry -- while painting the Sistine Chapel. What causes this unsightly problem, and how can you address it if it |

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How Contact Lens Displays Work
 Is everything an indistinguishable blur until you slip in your contact lenses every day? A band of researchers is determined to make those tiny, translucent discs way cooler, helping you to "see" a |

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The Parenting Style Quiz
 The science of raising kids, which took off at the dawn of the 20th century, has given birth to myriad formulas for being grade-A moms and dads, and it's up to modern parents to pick which style most |

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Videos: The Coolest Stuff in The United States
 Take a ride down Route 66, explore Yosemite National Park and cruise through the Everglades with the hosts of The Coolest Stuff on the Planet as they explore the United States' most amazing sites. |

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Videos: The Devils Ride
 Life inside the Laffing Devils, one of Southern California's biggest motorcycle clubs, doesn't come easy ... but it's sure intriguing.
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Is your cold one cold enough?
 Temperature-sensitive inks once rocked the '70s in the form of mood rings. These days, they're turning products like beer cans, wallpaper and footballs into color-changing chameleons. Learn more in |

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This Land is Your Land: The Citizenship Quiz
 For people who never leave their native countries, citizenship is simple as pie -- you simply have to be born. But being a citizen entails a lot more than just living in a nation. Test your knowledge |

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10 Influential Green Architects
 Many say the pioneer of green design was the irascible Frank Lloyd Wright, but others note that sustainable architecture has been around forever. Regardless, who are some of the leading figures in the |

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