Liquid rocket

Similar topics in Freebase

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  Astronaut

  An astronaut or cosmonaut is a person trained by a human spaceflight program to command, pilot, or serve as a crew member of a spacecraft. While generally reserved for professional space travelers, the term is sometimes applied to anyone who travels into space, including scientists, politicians,...
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  Extra-vehicular activity

  Extra-vehicular activity (EVA) is work done by an astronaut away from the Earth, and outside of a spacecraft. The term most commonly applies to an EVA made outside a craft orbiting Earth (a spacewalk), but also applies to an EVA made on the surface of the Moon (a moonwalk). In the later lunar...
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  President of the United States

  The President of the United States is the head of state and head of government of the United States and is the highest political official in the United States by influence and recognition. The president leads the executive branch of the federal government and is one of only two nationally elected...
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  Prime Minister of Canada

  The Prime Minister of Canada (French: Premier ministre du Canada) is the primary Minister of the Crown, chairman of the Cabinet, and thus head of government for Canada, charged with advising the Canadian monarch or viceroy on the exercise of the executive powers vested in them by the constitution....
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  Satellite

  In the context of spaceflight, a satellite is an object which has been placed into orbit by human endeavor. Such objects are sometimes called artificial satellites to distinguish them from natural satellites such as the Moon. The first artificial satellite, Sputnik 1, was launched by the Soviet...
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  Suicide

  Suicide (Latin suicidium, from sui caedere, to kill oneself) is the intentional killing of one's self. The most common cause is an underlying psychiatric disorders which include depression, schizophrenia, alcoholism and drug abuse. Financial difficulties or other undesirable situations play a...
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  Escape velocity

  In physics, escape velocity is the speed at which the kinetic energy of an object is equal to its gravitational potential energy. It is commonly described as the speed needed to "break free" from a gravitational field, for example for a satellite or rocket to leave earth. The term escape velocity...
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  Superhero

  A superhero (sometimes rendered super-hero or super hero) is a fictional character of "extraordinary or superhuman powers" dedicated to protecting the public. Since the debut of the prototypical superhero Superman in 1938, stories of superheroes—ranging from brief episodic adventures to continuing...
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  Governor

  A governor (from French gouverneur) is a governing official, usually the executive (at least nominally, to different degrees also politically and administratively) of a non-sovereign level of government, ranking under the head of state. In federations, a governor may be the title of each appointed...
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  Millionaire

  A millionaire (originally and sometimes still millionnaire) is an individual whose net worth or wealth exceeds one million units of currency. It can also be a person who owns one million units of currency in a bank account or savings account. Depending on the currency, a certain level of prestige...