This is an interview with Lt. Col. Thomas Bearden, a well-known free energy researcher. He speaks extensively about how it is possible to derive usable energy from the vacuum without violating any currently known laws of physics. He and others have built electromechanical devices which actually demonstrate this technology. He also explains how certain powers would rather keep this technology from becoming widely known and how the suppression of free energy technology is accomplished in many cases.
Source: Dr. Steven Greer Video