KIRKLAND, WASHINGTON, USA
I just finished an audio-interview with Dr. Robert Baker Jr., the creator of GravWave.com. Dr Baker has done an excellent job collecting and categorizing several different approaches to creating what Dr. Ning Li calls "AC-Gravity" -- and he's applied an engineer's eye to reducing the complex science to easily understandable techniques for testing these concepts.
The interview is about 35 minutes long (1.2mb), and available online in Windows Media 9 format at: http://AmericAnantiGravity.com/interviews.shtml
Beams of directed gravitational-wave energy at high-frequencies, producing tons of force, currently under study by both the government and private entities. These can be produced through electrical & magnetic jerks, as well as continuous-mode effects from high-amplitude RF-signals.
In the public mind, the work of Eugene Podkletnov is arguably the beginning of this type of research, but the achievements since his early experiments are considerably more impressive (and much less well known) than the mainstream media ever realized. For example, here is a selection from Baker about the theoretical possibilities of this technology:
"Utilizing a HTSC lens for concentrating HFGW power the theoretical ten-megawatt pulse output predicted in HFGW -03-107, 380-kilowatt continuous power predicted in HFGW -03-117, 11-kilowatt continuous power predicted in HFGW -03-106, and the over one-kilowatt pulse power predicted in HFGW -03-113 could be concentrated to provide HFGW fluxes in excess of 1020 [watts/m2]."
As you can see, we're not talking about a 2% loss in weight -- in fact, the limits on this technology are so high that it would be irresponsible NOT to experiment with it. The experiments described often require sensitive equipment to measure, but more often than not can be conducted using very common materials.
Baker discusses microwave-oven elements & cell-phone emitters as a potential means of transducing MW-frequencies into a superconductor.