ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,361, issued on Oct. 14.
"Photon drive and photon turbine" was invented by Blaz Angel (Ljubljana, Slovenia).
According to the abstract* released by the U.S. Patent & Trademark Office: "Photon drive and photon turbine When light reflects from a mirror it transfers sometimes more and sometimes less momentum to the mirror when mirror has dielectric in front compared to mirror in vacuum. Bouncing focused light between two mirrors fixed in a chasing where in front of one there is dielectric material and in front of the other there is vacuum, creates a net force difference. The second way to produce the force is through drag which light feels when it travels through dielectric material....