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Worn over the legs with a harness that reaches up the back and around the shoulders, X1 has 10 degrees of freedom, or joints -- four motorized joints at the hips and the knees, and six passive joints that allow for sidestepping, turning and pointing, and flexing a foot.
ENGADGET: NASA and IHMC building X1 exoskeleton to give us a lift, keep us fit in space and on Earth
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And what they have done in four short years and I shudder to think what the next four holds for the United States, but they're leaving America on her knees, staggering, bleeding, and leaving the rest of the world to run amok.
CENTERFORSECURITYPOLICY: Monica Crowley, Mightier Pen 2012
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Despite creaky knees and a reckless style, he remained healthy and won three of the four Grand Slam tournaments in 2010, including the U.S Open, which gave him at least one victory at all four majors.
WSJ: Novak Djokovic vs. Rafael Nadal: A Fitting End to the Year of the Tiger