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Associated Press
In this image taken June 20, 2013 and made from tv via Xinhua News Agency, female astronaut Wang Yaping, of Shenzhou 10 spacecraft, demonstrates gyroscopic motion in space during a lecture to students on Earth, aboard China's space module Tiangong 1. China’s astronauts spun gyroscopes and implanted tiny knots into sheets of suspended water during their first classroom lecture from the country’s orbiting space station, part of efforts to popularize the successful manned space flight program among young people.(AP Photo/CCTV via Xinhua) NO SALES

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