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Station Crew Conducts Spacewalk Dress Rehearsal

Published by Klaus Schmidt on Sat Nov 13, 2010 9:28 am via: NASA
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Expedition 25 Flight Engineers Fyodor Yurchikhin and Oleg Skripochka put on their Orlan spacesuits Friday to conduct a dress rehearsal of their upcoming spacewalk.

In the Pirs docking compartment, they checked out the suits and communications prior to their spacewalk Monday out of the Pirs airlock to install experiments and a work platform on the Russian segment of the station and to reposition a TV camera on the Rassvet module. Hatch opening for the start of the spacewalk is scheduled for 9:25 a.m. EST Monday.

Commander Doug Wheelock and Flight Engineer Shannon Walker participated in the Japanese experiment known as BIORHYTHM, which measures a crew member’s cardiac activity during long duration stays in space. The research came about after demonstrations showed lack of an earth-bound circadian rhythm can disrupt sleep patterns and adversely affect cardiovascular functions.

Flight Engineer Alexander Kaleri conducted a session with the Coulomb Crystal experiment, which studies dynamic and structural characteristics of the Coulomb systems formed by charged dispersed diamagnetic macroparticles in a magnetic trap. Coulomb systems are structures following Coulomb’s Law, a law of physics describing the electrostatic interaction between electrically charged particles. It was essential to the development of the theory of electromagnetism.

Flight Engineer Scott Kelly spent time on the Capillary Flow Experiment, which he has been working with all week. This is a suite of fluid physics experiments that investigate capillary flows and flows of fluids in containers with complex geometries. Results will improve current computer models that are used by designers of low gravity fluid systems and may improve fluid transfer systems on future spacecraft.

Walker also worked in the Kibo laboratory updating the hardware and software that drives the module’s robotic arm.

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