PostsCommentsPayoutsharshly (19)in #news • 6 years agoSolar sails for NASAResearchers is taking solar sailing to the next level with advanced photonic materials. This new class of materials could be used to steer reflected or transmitted photons and…harshly (19)in #news • 6 years agoEn route to the optical nuclear clockThe nucleus of thorium-229 possesses a property that is unique among all known nuclides: It should be possible to excite it with ultraviolet light. To date, little has been known…