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  2. Cannon fodder - Wikipedia

    en.wikipedia.org/wiki/Cannon_fodder

    Cannon fodder is an informal, derogatory term for combatants who are regarded or treated by government or military command as expendable in the face of enemy fire. The term is generally used in situations where combatants are forced to fight against hopeless odds (with the foreknowledge that they will suffer extremely high casualties) in an effort to achieve a strategic goal; an example is the ...

  3. Expendable launch system - Wikipedia

    en.wikipedia.org/wiki/Expendable_launch_system

    An expendable launch system (or expendable launch vehicle/ELV) is a launch vehicle that can be launched only once, after which its components are destroyed during reentry or impact with Earth, or discarded in space.

  4. Space vehicle - Wikipedia

    en.wikipedia.org/wiki/Space_vehicle

    The earliest space vehicles were expendable launch systems, using a single or multistage rocket to carry a relatively small spacecraft in proportion to the total vehicle size and mass. [1] An early exception to this, the Space Shuttle , consisted of a reusable orbital vehicle carrying crew and payload, supported by an expendable external ...

  5. List of English auxiliary verbs - Wikipedia

    en.wikipedia.org/.../List_of_English_auxiliary_verbs

    This is a list of English auxiliary verbs, i.e. helping verbs, which include Modal verbs and Semi-modal verbs. See also auxiliary verbs , light verbs , and catenative verbs . Primary Auxiliary Verbs

  6. List of English irregular verbs - Wikipedia

    en.wikipedia.org/.../List_of_English_irregular_verbs

    English irregular verbs are now a closed group, which means that newly formed verbs are always regular and do not adopt any of the irregular patterns. This list only contains verb forms which are listed in the major dictionaries as being standard usage in modern English. There are also many thousands of archaic, non-standard and dialect variants.

  7. Reusable launch vehicle - Wikipedia

    en.wikipedia.org/wiki/Reusable_launch_vehicle

    Existing examples are systems which employ winged horizontal jet-engine powered liftoff. Such aircraft can air launch expendable rockets and can because of that be considered partially reusable systems if the aircraft is thought of as the first stage of the launch vehicle. An example of this configuration is the Orbital Sciences Pegasus.