TechnologySuper-bright fluorescent solids can be 3D printed in any shape There’s a cheap new way to make fluorescent dyes into solid materials that glow, and it could be used to 3D print objects that guide light into solar cells 51¶¯Âþ
EarthRock peeling off continents may have triggered biggest mass extinction The Permian extinction, which wiped out almost all complex life, may have been caused by the undersides of continents slipping off into Earth’s interior 51¶¯Âþ