Caption:infobox controversial invention

{{Infobox controversial invention | name = RF resonant cavity thruster | image = File:EmDrive built by Eagleworks inside the test chamber.jpg | alt = | caption = Prototype resonant cavity thruster built by [[NASA]]'s [[Advanced Propulsion Physics Laboratory]] | topics = | claims = Device produces thrust without a reaction force. | origyear = 2001 | inventor = {{plainlist | * Roger Shawyer }} | origprop = | currentprop = | lawviolation = {{plainlist | * [[Conservation of momentum]] * [[Conservation of energy]] * [[Newton's third law]] }} | inventorclaim = }}