User:Astrojet/Advanced deep space transport

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Advanced deep space transport is the title for a group of study programs searching for technologies that might eventually produce durable space vehicles capable of operating outside the Solar System.. The 100 Year Starship initiative of DARPA and NASA announced in 2011 is one of the deep space programs that invites scientists from many disciplines to present state of the art papers at conferences and symposiums. Smaller steps were planned in 2002 for development and testing of next generation equipment and methods in the Solar System within 25 years.

History

 * Before the 100 Year Starship initiative, NASA, the US Air Force, and select industry representatives operated the seldom mentioned Advanced Deep Space Transport Group ADST, reported to include members as diverse as John F. Schuessler, Harold Puthoff , and Eric W. Davis.

Suggested principles
Solar sails have been suggested with or without assistance of laser-power beamed from Earth.

Field effect propulsion exist in theories and various devices have been tested with progress reported but inconclusive results.

Woodward effect in principle alters the inertia of a moving object according one of the Mach principles, and test have been reported, but lack convincing proof.

Quantum vacuum thrusters are proposed and disputed in principle.

Patent applications have been filed for two types of RF resonant cavity thrusters that use standing waves to generate interference patterns inside asymmetric cavities. Objections are given concerning conservation of momentum

Curvature of space from the electromagnetic stress tensor of General Relativity is proposed as a way to alter or control local gravity.