Cong Zhang's Profile

TOXICITY

• a stable internal <!--del_lnk--> pressure. This can be less than earth's atmosphere, as there is usually no need for the spacesuit to carry nitrogen.
  
• breathable oxygen. Usually a <!--del_lnk--> rebreather is used along with a supply of fresh oxygen.
  
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  <!--del_lnk--> temperature regulation. Heat can only be lost in space by <!--del_lnk--> thermal radiation, or <!--del_lnk--> conduction with objects in physical contact with the space suit. Since heat is lost very slowly by radiation, a space suit almost always has only a cooling system and heavy insulation on the hands and possibly feet.
  
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  <!--del_lnk--> electromagnetic radiation shielding.
  
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  <!--del_lnk--> micrometeoroid protection.
  
• mobility.
  
• a communication system.
  
• means to recharge and discharge <!--del_lnk--> gases and <!--del_lnk--> liquids.
  
• means to maneuver, dock, release, and tether on <!--del_lnk--> space craft.