Matches in DBpedia 2016-04 for { ?s ?p "A radio frequency (RF) resonant cavity thruster is a proposed new type of electromagnetic thruster. Unlike conventional electromagnetic thrusters, a resonant cavity thruster would use no reaction mass, and emit no directional radiation. Their design principles are not supported by prevailing scientific theories, and they apparently violate the law of conservation of momentum; as a result they are controversial.A few variations on such thrusters have been proposed. Aerospace engineer Roger Shawyer designed the EmDrive in 2001, and has persistently promoted the idea since then through his company, Satellite Propulsion Research.Chemical engineer Guido Fetta designed the Cannae Drive, based on similar principles. If they are found to work as claimed, providing thrust without consuming a propellant would have important applications to all areas of propulsion.Some independent teams of scientists, notably a team at Xi'an's Northwestern Polytechnical University (NWPU), one at NASA's Eagleworks laboratories, and another at the Dresden University of Technology in Germany, have built prototypes of these designs. The NWPU team reported a small but significant thrust; NASA Eagleworks reported a much smaller thrust than the NWPU team; and the Dresden team reported a small thrust, but within experimental error.The claims of proponents, especially in respect of independent validation, are disputed."@en }
Showing triples 1 to 2 of
2
with 100 triples per page.
- RF_resonant_cavity_thruster abstract "A radio frequency (RF) resonant cavity thruster is a proposed new type of electromagnetic thruster. Unlike conventional electromagnetic thrusters, a resonant cavity thruster would use no reaction mass, and emit no directional radiation. Their design principles are not supported by prevailing scientific theories, and they apparently violate the law of conservation of momentum; as a result they are controversial.A few variations on such thrusters have been proposed. Aerospace engineer Roger Shawyer designed the EmDrive in 2001, and has persistently promoted the idea since then through his company, Satellite Propulsion Research.Chemical engineer Guido Fetta designed the Cannae Drive, based on similar principles. If they are found to work as claimed, providing thrust without consuming a propellant would have important applications to all areas of propulsion.Some independent teams of scientists, notably a team at Xi'an's Northwestern Polytechnical University (NWPU), one at NASA's Eagleworks laboratories, and another at the Dresden University of Technology in Germany, have built prototypes of these designs. The NWPU team reported a small but significant thrust; NASA Eagleworks reported a much smaller thrust than the NWPU team; and the Dresden team reported a small thrust, but within experimental error.The claims of proponents, especially in respect of independent validation, are disputed.".
- Q5368744 abstract "A radio frequency (RF) resonant cavity thruster is a proposed new type of electromagnetic thruster. Unlike conventional electromagnetic thrusters, a resonant cavity thruster would use no reaction mass, and emit no directional radiation. Their design principles are not supported by prevailing scientific theories, and they apparently violate the law of conservation of momentum; as a result they are controversial.A few variations on such thrusters have been proposed. Aerospace engineer Roger Shawyer designed the EmDrive in 2001, and has persistently promoted the idea since then through his company, Satellite Propulsion Research.Chemical engineer Guido Fetta designed the Cannae Drive, based on similar principles. If they are found to work as claimed, providing thrust without consuming a propellant would have important applications to all areas of propulsion.Some independent teams of scientists, notably a team at Xi'an's Northwestern Polytechnical University (NWPU), one at NASA's Eagleworks laboratories, and another at the Dresden University of Technology in Germany, have built prototypes of these designs. The NWPU team reported a small but significant thrust; NASA Eagleworks reported a much smaller thrust than the NWPU team; and the Dresden team reported a small thrust, but within experimental error.The claims of proponents, especially in respect of independent validation, are disputed.".