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Listening Window   Odisha Knowledge Hub Lecture Series  97
































                                          transport things  inside  and outside  the station.   The most fortunate thing a cosmonaut gets to do
                                          Using this technology, 41 satellites were launched   in Orbit is Space Walk and he was lucky enough to
                                          to orbit over a period of two weeks during his stay.   do it twice. Two weeks after the first space walk,
                                          A number of experiments and research are being    he had the opportunity to do it again while trying
                                          carried out in space including drugs to fight cancer.   to fix an antenna at the bottom of the Space
                                                                                            Station, as the computers which handled external
                                          The cosmonauts are also required to do exercises   processes were malfunctioning.
                                          for at least two and a half hours per day, so as to
                                          not lose any bone and muscle mass while they are   During space missions, the cosmonauts take
                                          in space. Ultrasound methods are used to keep a   pictures of deserts, glaciers, mountains, old and
                                          check on and monitor their exercise protocol and   new volcanoes, and eclipses on earth. They look
                                          its effects on their bodies. Due to lack of gravity,   at  the lakes,  rivers,  sedimentation  on  beaches
                                          the cosmonauts face a lot of eyesight problems    and at different irrigation effects throughout the
                                          which are also kept in check through ultrasound   world. Observing the flow of water from orbit is an
                                          methods.
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