Fluid Studies Today Benefit Astronauts and Kids

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Expedition 50 flight engineer Thomas Pesquet

Expedition 50 flight engineer Thomas Pesquet of ESA (European Space Agency) juggles a set of video cameras in the microgravity environment of the International Space Station.

The Expedition 50 crew members explored a variety of space phenomena today to help researchers improve life for humans and stimulate children’s curiosity in science, technology, engineering and mathematics.

Scientists are working to understand how fluids behave not just in spacecraft fuel tanks and containers but also inside an astronaut’s body. Microgravity creates a headward flow of fluids that increases pressure on the back of an astronaut’s eyes potentially causing damage and affecting vision.

NASA astronaut Peggy Whitson and her Soyuz crewmates Oleg Novitskiy and Sergey Ryzhikov explored the effectiveness of a suit that may reverse these upward fluid shifts. Whitson and Novitskiy used a combination of eye exams and ultrasound artery scans on Ryzhikov today while he wore the Lower Body Negative Pressure (LBNP) suit today. The LBNP may offset the microgravity-induced fluid shifts possibly reducing the risk of vision changes in space.

Commander Shane Kimbrough reached out to schoolchildren this morning reading a story book and videotaping a simple fluids experiment. The Story Time From Space series seeks to increase science literacy by engaging students and teachers.


Get weekly video highlights at: http://jscfeatures.jsc.nasa.gov/videoupdate/

2 thoughts on “Fluid Studies Today Benefit Astronauts and Kids

  1. Armen Ohan .

    Dear Sirs ,
    There is necessity of using some extra accessories on that lab on the bord of The International Space Station permits making experiments in a different values of pressures and temperatures , to observe liquid shifting in a zero gravity and in vacuum , to check of this phenomenon on several probabilities, because there are so many factors have the influences on that , were it is pressure, temperature and the level of attraction between atoms of these materials which in contact with each other ,,,, etc .
    Remember boiling temperature of liquids challenge during changing the pressure , any liquid shifting of the fuel out side the storing vessel ( tank) , may evaporate that liquid rapidly , because the pressure is low or absent in the high orbits.
    Also we have to consider were could these shifting may occur ( next to burning chamber which have very high temperature or next to storing vessels which suffers of extremely reduces in temperature due to thermodynamic phases transfer ).
    Because the temperature have a high influences surface tension of materials as well as another physical and chemical characteristic ) of material where could change the sort of these liquid shifting .
    In regards to shifting liquids in human body , we do know there so many biological sensors working in the blood circulatory to organize blood pressure , may the functions of these sensors distorts during a zero gravity which results unbalance in the blood pressure in the human blood circulatory .
    During a long time a space journeys , these distortions will result a permanent physical distortions upon blood circulatory system that makes the astronauts keeping suffering of a high pressure liquid in some specific organs .
    Therefore changing a design of a long space journeys spacecraft is important and make as ( cylindrical and rotate to generate centrifugal force as an artificial gravity is required ) to prevent any health deterioration to the astronauts during and after the space journey .
    Sincerely.
    Armen Ohan .

    Reply
  2. Armen Ohan

    Dear Sirs ,
    There is necessity of using some extra accessories in that lab on the bord of The International Space Station permits making experiments in a different pressures and temperatures to observe liquid shifting in a zero gravity and in the vacuum , to check of this phenomenon on several probabilities, because there are so many factors have the influences on that , were it is pressure, temperature , surface tension and the level of attraction between atoms of these materials which in contact with each other ,,,, etc .
    Remember the boiling temperature of liquids changes during changing the pressure , any liquid shifting of the fuel out side outside or inside of the storing vessel ( tank) , may evaporate rapidly , because when the pressure is in low values or absent in the high orbits.
    Also we have to consider were could these shifting may occur ( next to burning chamber which have very high temperature or next to storing vessels which suffers of extremely reduce in the temperature due to thermodynamic phases transfer of materials).
    Because the temperature have a high influences upon surface tension of materials as well as upon another physical and chemical characteristic as well ) of material where could change the sort of these liquid shifting .
    In regards to shifting liquids in human body , we do know there are so many biological sensors working in the blood circulatory to organize blood pressure with the heart pulses pressure , may the functions of these biological sensors distorts during a zero gravity which results unbalance in the blood pressure in the human blood circulatory .
    During a long time a space journeys , these distortions will result a permanent physical distortions upon blood circulatory system that makes the astronauts keeping suffering of a high pressure liquid in some specific organs .
    Therefore changing a design of a long space journeys spacecraft is important and make it as ( cylindrical and rotate to generate centrifugal force as an artificial gravity is required ) to prevent any health deterioration to the astronauts during and after the space journey .
    Sincerely.
    Armen Ohan .

    Reply

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