i m p o s s i b l e e m d r i v e p h y s i c s p e erreviewspacescienceTurns out , the EmDrive is capable of producing 1 . 2 millinewtons per kilowatt of energy , according to the authors ' estimates . From the above article . Current engines produce 60 millinewtons per kilowatt but use fuel . This is a fraction of that but requires way less energyfuel . It has been tested by Eagle works and now Nasa has put it in a peer review journal . <| sep |> Donated $ 1 <| sep |> You do know that anecdotal evidence is still evidence , right ? Its strength comes in numbers and , actually , I ' m pretty sure the numbers show that while singleparent children do , on average , fair somewhat worse than twoparent children , the majority don ' t turn out to be strippers or prostitutes . You are still an asshole .