PostsCommentsPayoutspetua (19)in #undefined • 6 years agoHarley Davidson reveals radical new range including electric bikeLegendary bike maker Harley Davidson has unveiled plans to launch an electric motorcycle next year along with a host…petua (19)in #undefined • 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…