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China Cracks Down on Bad Breath in Space

Chinese astronauts must meet standards "close to perfection" for physical and mental health

China's future astronauts can't have bad breath, cavities, or scars if they hope to join the next wave of Chinese space exploration. Hospitals have begun the first of three rounds of tests to weed out candidates who fail to meet the rigorous standards.

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iPhone Game Gets Your Kid off the Couch and into an Alternate Reality

The Hidden Park uses the iPhone to reveal the secrets of the world's metropolitan parks

Kids these days. It seems that they were born into a society that spends 90 percent of its time staring at glowing rectangles, much to the chagrin of parents everywhere. Playing outside just seems like too low-tech of an option for them to bother wasting their time with. However, Bulpadok, an Australian app company, might convince them to take the screen with them outdoors, with The Hidden Park, a new iPhone-based scavenger hunt.

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Science Confirms the Obvious

Parents and Adult Children: Mutually Irritating

Family dynamics often fraught with tension, study shows

Investigators at the University of Michigan's Institute for Social Research have unequivocally demonstrated that our parents often get on our nerves -- and we on theirs. "The parent-child relationship is one of the longest-lasting social ties human beings establish," said Kira Birditt, the study's lead. "This tie is often highly positive and supportive but it also commonly includes feelings of irritation, tension and ambivalence."

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December 2009: Best of What's New

In our December issue, Popular Science names the 100 best innovations of the year: bombproof wallpaper, self-parking cars, the fastest helicopter, and 97 more. Plus inventor profiles and videos.

Check out the best of what's new here.

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