The EM drive – a radio frequency (RF) resonant cavity thruster – appears to produce an ‘impossible’ thrust. Impossible – in that it apparently violates Newtons third law of motion: “For every action, there is an equal and opposite reaction.” Now in a recent paper by a group of Portuguese physicists, led by Prof. Jose Croca from the Center for Philosophy of Sciences at the University of Lisbon, present a possible explanation for this observed ‘impossible’ thrust.
The EM drive was first proposed in 2001 by British inventor Roger Sawyer and has subsequently been tested by numerous groups around the world alongside possible explanations for its propulsion. However, still a hot topic of debate, a consensus on the level of thrust and an explanation for the thrust has not been found.
Croca and his team hope to change this through their explanation...
The EmDrive, originally developed by Roger Shawyer at SPR Ltd., is a propellant-free microwave thruster that produces acceleration via an electromagnetic cavity without need for traditional fuel sources. After several successful experimental demonstrations of the EmDrive’s ability to produce thrust by NASA’s Eagleworks laboratory, several researchers are using the quantum mechanical model of Pilot Wave theory to describe how the engine interacts with the quantum vacuum to produce thrust.