Expedition 16 Commander Peggy Whitson and Flight Engineer Dan Tani finished the removal and replacement of the Carbon Dioxide Removal Assembly (CDRA). Filters in the CDRA were also inspected and cleaned.
Flight Engineer Yuri Malenchenko exercised on the Treadmill Vibration Isolation System as part of a Russian experiment. The experiment is designed to study countermeasures to disorders associated with weightlessness and microgravity. Body mass measurements of the crew were also taken for a routine Russian biomedical assessment.
Whitson also activated the Microgravity Science Glovebox (MSG) to begin an experiment last performed during Expedition 13. The experiment, named InSPACE, studies special fluids, or “smart materials”, that may improve such things as braking systems and robotics. In the MSG, the fluids are subjected to a magnetic field and then transition to a solid-like state.
sources : http://www.nasa.gov/mission_pages/station/main/index.html
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