40 of London's magnificent hidden gems, from a globe-maker in Stoke Newington to our Roman amphitheatre

On a hill in north London, about 100 metres above sea level, is the capital’s only commercial scale vineyard, Forty Hall. It ...
Nature

Prospects for LED lighting

More than one-fifth of US electricity is used to power artificial lighting. Light-emitting diodes based on group III/nitride semiconductors are bringing about a revolution in energy-efficient lighting ...
CNET

I Was Tired of My LED Bulbs Dying, So I Hunted Down an Expert for the Cold, Hard Truth

I've completely swapped my home over to LED lights, and for the most part, I love it. The energy savings are real, and I'm a sucker for all the smart color changing tes. But my biggest grievance is ...