Biology today magazine

 Biology today magazine

biology today magazine  Published this article page no 54  It is designed to carry 4 ton class of satellites into Geosynchronous Transfer Orbit (GTO) or about 10 tons to Low Earth Orbit (LEO) which is about twice the capability of the GSLV Mk II. 92  The Orbital module (OM) will be launched by a humanrated GSLV MKIII vehicle and will orbit the Earth with a velocity of about 7800 metresecond.  For the first crewed mission of Gaganyaan programme astronaut trainees are selected based on selection criterion jointly defined by ISRO and Indian air force which comprises offlying experience fitness psychological and aeromedical evaluation. o The crew will undergo training in weightlessness condition by flying in special aircraft through a parabolic path that will give 25 to 30 seconds duration of weightlessness. o To familiarise the crew with rescue under abort conditions they will undergo special survival training in sea snow mountain and desert conditions.  Gaganyaan would be smaller in size than the current manned missions of Russian Soyuz Chinese Shenzhou and NASA's planned Orion spacecraft. Challenges  Hostile environmentThe ‘Gaganyaan’ has to create an atmosphere like Earth inside a small volume and ensure that adequate supply of oxygen removal of carbondioxide and comfortable temperature and humidity levels are maintained throughout the mission.  Gravity fieldTransitioning from one gravity field to another has impact on the physical bodies. It affects handeye and headeye coordination. NASA has learned that without gravity working on the human body bones lose minerals.  Isolation Due to isolation one may encounter depression fatigue sleep disorder and psychiatric disorders biology today magazine buy.  



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