EarthLighting cities with cheap, glaring LEDs is a dim move The roll-out of cheap energy-saving street lights with a bluish glare has little regard for people or wildlife. There is a better way, says Jeff HechtComment
TechnologySnowflake-shaped networks are easiest to mend Power grids and other networks with the branching quality of snowflakes are easiest to fix when damaged links can't simply be restored in the same place News