yaksteel (18)in #undefined • 6 years agoBuffetts Berkshire profits soar 67 percentBerkshire Hathaway, the conglomerate run by billionaire Warren Buffett, has reported a quarterly operating profit rise…yaksteel (18)in #news • 6 years agoNew solar sailing technology for NASAResearchers is taking solar sailing to the next level with advanced photonic materials. This new class of materials…