http://en.wikipedia.org/wiki/EmDrive

http://emdrive.com/

http://www.extremetech.com/extreme/187346-nasa-tests-impossible-no-fuel-quantum-space-engine-and-it-actually-works

EmDrive (also Relativity Drive) is the name of a spacecraft propulsion system proposed by British aerospace engineer Roger J. Shawyer, who develops prototypes at Satellite Propulsion Research Ltd (SPR),[1] the company he created for that purpose in 2000.[2] New Scientist ran a cover story on EmDrive in its 8 September 2006 issue.[3] The device uses a magnetron producing microwaves directed inside a specially shaped, fully enclosed tapering high Q resonant cavity whose area is greater at one end, upon which radiation pressure would act differently due to a relativistic effect caused by the action of group velocity in different frames of reference. The inventor claims that the device generates a thrust even though no detectable energy leaves the device. If proven to work as claimed, the EmDrive could allow the design of spacecraft engines that would be electrically powered and would require no reaction mass. Such an engine would be a breakthrough in airflight and spaceflight.

http://fc-solve.shlomifish.org/

http://www.solitairelaboratory.com/mshuffle.txt

FreeCell is the enormously popular solitaire game included with Windows. Because all cards are visible at the start of the game, it is almost entirely a game of skill. Almost all FreeCell positions can be won. The most notable exception is the game #11982 in Microsoft FreeCell and Pretty Good Solitaire.