Light-emitting diode18 Nov 2014The end of the lightbulb?Efficient LED technology looks set to flick the switch on traditional incandescent lightbulbs forever, say researchers.18 Nov 2014Future12 Nov 2013Potato power to light the worldWith a simple trick, the humble spud can be made into a battery, so could potato powered homes catch on?12 Nov 2013Future4 Jun 2013City farms to feed a hungry worldThere will be billions more hungry people in 2050. Growing our food on vertical farms or under radical new lighting systems may be key to ensuring they have eno4 Jun 2013Future14 Feb 2012Lantern shines light on disastersHaiti’s devastating 2010 earthquake shattered the country’s infrastructure, but it caused a light bulb to appear in one designer’s head.14 Feb 2012Future