emergency breathing subsystem
1international relations — a branch of political science dealing with the relations between nations. [1970 75] * * * Study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies and political… …
2Future Force Warrior — is a United States military advanced technology demonstration project that is part of the Future Combat Systems project. [ [http://www.defense update.com/products/f/ffw atd.htm] ] The FFW project seeks to create a lightweight, fully integrated… …
3Primary Life Support System — A Primary (or Portable) Life Support System/Subsystem, or PLSS, is the backpack of a spacesuit. It provides most of the functions of a spacecraft life support system, in a smaller package. The functions performed by the PLSS include: *regulating… …
4Atmospheric reentry — refers to the movement of human made or natural objects as they enter the atmosphere of a planet from outer space, in the case of Earth from an altitude above the edge of space. This article primarily addresses the process of controlled reentry… …
5Rocket — This article is about vehicles powered by rocket engines. For other uses, see Rocket (disambiguation). A Soyuz U, at Baikonur Site 1/5 A rocket is a missile, spacecraft, aircraft or other vehicle which obtains thrust from a rocket engi …
