Patent ID: 7199498

Claim:
An assembly immersed in a working substance having a plurality of molecules comprising: a base member; a magnetic field; a first nanometer-scale beam fixed at both ends to said base member, wherein a middle portion of said first beam is free-to-move, said first beam is immersed in said magnetic field, a time-varying electrical current flows through said first beam, electromagnetic interactions between said first beam and said magnetic field cause motion of said first beam relative to said base member, and said motion changes the average velocity of at least a few of said plurality of molecules along a desired direction; and switching circuitry coupled to at least one of said both ends that provides said time-varying electrical current, a second nanometer-scale beam fixed to said base member, wherein said second nanometer-scale beam has a second portion that is free-to-move; and a channel having an input opening and an output opening, wherein said first and second beams are located in said channel between said input and output openings, wherein said direction is along a line from said input opening to said output opening.