As stated in NextBigFuture, a US scientist, Guido Fetta, has built his own propellant-less microwave thruster, and managed to persuade NASA to test it out. The test results were presented on July 30 at the 50th Joint Propulsion Conference in Cleveland, Ohio. Astonishingly enough, they are positive.
Numerical and Experimental Results for a Novel Propulsion Technology Requiring no On-Board Propellant
Guido P. Fetta, Cannae, LLC
Read More: http://arc.aiaa.org/doi/abs/10.2514/6.2014-3853
The NASA team based at the Johnson Space Centre gave its paper the title “Anomalous Thrust Production from an RF [radio frequency] Test Device Measured on a Low-Thrust Torsion Pendulum”. The five researchers spent six days setting up test equipment followed by two days of experiments with various configurations. These tests included using a “null drive” similar to the live version but modified so it would not work, and using a device which would produce the same load on the apparatus to establish whether the effect might be produced by some effect unrelated to the actual drive. They also turned the drive around the other way to check whether that had any effect.
Anomalous Thrust Production from an RF Test Device Measured on a Low-Thrust Torsion Pendulum
David A. Brady, Harold G. White, Paul March, James T. Lawrence, and Frank J. Davies
NASA Lyndon B. Johnson Space Center, Houston, Texas 77058
This paper describes the eight-day August 2013 test campaign designed to investigate and demonstrate viability of using classical magnetoplasmadynamics to obtain a propulsive momentum transfer via the quantum vacuum virtual plasma. This paper will not address the physics of the quantum vacuum plasma thruster, but instead will describe the test integration, test operations, and the results obtained from the test campaign.
Back to 2009
A Nextbigfuture review of emdrive in 2009
A link to the 14 page word document on the 2009 EMDrive research
Wired also has an article on the Emdrive
A connection to EHT is not suspected as a theoretical basis for this drive despite the reliance of both upon superconductors.
I have three publications to share with the readers through the generosity of Prof. Dr. rer.nat. Jochem Hauser.
The first is his review of the book “Gravity-Superconductor Interactions: Theory and Experiment”, first published in 2012. Editors: G. Modanese, G. A. Robertson. Dr. Hauser also includes a short mention of my and my book. Please click HERE to launch the Acrobat (PDF) file of the book review.
The second is Chapter 11 of the same edition, entitled Emerging Physics for Gravity-Like Fields written by Walter Dröscher and Jochem Hauser. It also contains the Foreword to the edition. Here is the abstract:
Abstract: Based on theoretical ideas under development since 2002, termed Extended Heim Theory (EHT), as well as experiments performed at AIT Seibersdorf, Austria since 2006, it is argued that there is evidence for the existence of novel gravity-like fields and thus also different types of matter. These gravity-like fields are not described by conventional Newtonian (Einsteinian) gravitation, i.e., by the accumulation of mass. Instead, under certain conditions, they should be producible in the laboratory by small ring or disk shaped masses rotating at cryogenic temperatures. EHT, in describing these novel fields, postulates six fundamental physical interactions, three of them of gravitational nature. The two additional gravity-like fields may be both attractive and repulsive. It is further argued, based on both EHT and experiments, that these gravity-like fields are outside the known four physical fundamental forces, and may result from the conversion of electromagnetic into gravitational fields. The gravitomagnetic effect of these fields is found to be some 18 orders of magnitude larger than classical frame dragging of General Relativity. This fact seems to be in accordance with recent experiments performed at AIT Seibersdorf. A non relativistic semiclassical model will be presented as an attempt to explain the physical nature of the novel gravity-like fields. There seems to be a special phase transition, triggered at cryogenic temperatures, responsible for the conversion of electromagnetic into gravitational fields. The features of the six fundamental physical interactions are utilized to investigate the potential of the novel gravity-like fields for propulsion purposes as well as energy generation.
Please click HERE to launch the Acrobat (PDF) file of Chapter 11.
Finally, in preparation for the publishing of the sixth (special) issue of the Journal of Space Exploration, Dr. Hauser has generously allowed me to post the Foreword for that issue. Please click HERE to launch the Acrobat (PDF) file of that foreword.