Roger Shawyer - EmDrive: NASA's "Impossible" Fuel-Less Thruster

EmDrive Inventor Roger Shawyer provides an in-depth review of the highly-publicized EmDrive propulsion technology, which has been featured in Popular Mechanics, Wired, Space.com, National Geographic, NewScientist, Forbes, and other popular media venues. In 2016, Harold White's group at NASA observed a small apparent thrust from one such test, however subsequent studies suggested this was a measurement error caused by thermal gradients. In this presentation, Shawyer defends the experimental test, and says, "The company has successfully tested both an experimental thruster and a demonstrator engine which use patented microwave technology to convert electrical energy directly into thrust." The EmDrive is a concept for a thruster for spacecraft, first written about in 2001. It is purported to generate thrust by reflecting microwaves inside the device, in a way that would violate the law of conservation of momentum and other laws of physics. The concept has been referred to at times as a resonant cavity thruster or as the latest "Impossible Drive". Roger Shawyer is a British Chartered Electrical Engineer with 48 years’ experience in the Space and Defence industries. Roger is the inventor of the EmDrive and for the last 19 years has been director of a small R&D company, Satellite Propulsion Research Ltd (SPR). Roger's extensive career includes work at CAV limited, Sperry Gyroscope, and Marconi Space & Defence Systems and more. Links: http://www.emdrive.com/