astronauts are brought back to by a Soyuz capsule. The Soyuz capsule has a curved ablative heat shield that is used to prevent heat from building up and penetrating the crew cabin.
Astronauts and cosmonauts return to Earth in a Soyuz capsule. The Soyuz capsule has a curved ablative heat shield that is used to prevent heat from building up and penetrating the crew cabin. As the capsule plummets through the atmosphere it slams into molecules of air.
The plunging reaction in human beings is described by breath-holding, easing back of the pulse (jumping bradycardia), decrease of appendage blood stream and a continuous ascent in the mean blood vessel circulatory strain.
<em>The bradycardia results from expanded parasympathetic upgrade to the cardiovascular pacemaker.</em>
Hydrostatic weight on the outside of the body because of head out drenching in water causes negative weight breathing which movements blood into the intrathoracic circulation.
