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helium propellant

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  • Helium-3 propulsion — is a proposed method of spacecraft propulsion that uses the fusion of helium 3 atoms as a power source. Helium 3, an isotope of helium with two protons and one neutron, could be fused with deuterium in a reactor. The resulting energy release… …   Wikipedia

  • List of food additives — This is an alphabetical list of food additives. For related lists, see also: List of food additives, Codex Alimentarius and E number.: This article is incomplete. Please help by expanding it. List of food additive types* Acidity regulators * Anti …   Wikipedia

  • Gene gun — PSD 1000/He Particle Delivery System A gene gun or a biolistic particle delivery system, originally designed for plant transformation, is a device for injecting cells with genetic information. The payload is an elemental particle of a heavy metal …   Wikipedia

  • liquid oxygen — Synonyms and related words: Dry Ice, Freon, ammonia, carbon dioxide, charge, coolant, ether, ethyl chloride, exhaust, freezing mixture, fuel, ice, ice cubes, jet propulsion, liquid air, liquid helium, propellant, propulsion charge, reaction… …   Moby Thesaurus

  • Fusion rocket — A fusion rocket is a theoretical design for a rocket driven by fusion power which could provide efficient and long term acceleration in space without the need to carry a large fuel supply. The design relies on the development of fusion power… …   Wikipedia

  • Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …   Universalium

  • Physical Sciences — ▪ 2009 Introduction Scientists discovered a new family of superconducting materials and obtained unique images of individual hydrogen atoms and of a multiple exoplanet system. Europe completed the Large Hadron Collider, and China and India took… …   Universalium

  • Apollo Command/Service Module — Apollo CSM The Apollo 15 CSM in lunar orbit Description Role: Earth and Lunar Orbit Crew: 3; CDR, CM pilot, LM pilot Dimensions Height: 36.2 ft 11.03 m …   Wikipedia

  • Gas core reactor rocket — Gas core reactor rockets are a conceptual type of rocket that is propelled by the exhausted coolant of a gaseous fission reactor. The nuclear fission reactor core may be either a gas or plasma. They may be capable of creating specific impulses of …   Wikipedia

  • Space Shuttle main engine — SSME redirect here. For the services field, see Service Science, Management and Engineering infobox rocket engine imsize=250 caption=Space Shuttle Main Engine test firing name=Space Shuttle Main Engine country of origin=United States manufacturer …   Wikipedia

  • Pressure-fed cycle (rocket) — The pressure fed cycle is a class of rocket engine designs. A separate gas supply, usually helium, pressurizes the propellant tanks to force fuel and oxidizer to the combustion chamber. To maintain adequate flow, the tank pressures must exceed… …   Wikipedia

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