Each of the three basic types of light sources — incandescent, fluorescent, and HID — has its own particular applications and advantages. The proper selection of a lamp type will ultimately depend on ...

ALBERT EINSTEIN won the 1921 Nobel prize for physics in 1922. The temporal anomaly embodied in that sentence was not, alas, one of the counterintuitive consequences of his theories of relativity, ...

It is in the darkest time of the year with the arrival of winter thatperhaps we most appreciate our light bulbs. It isn’t just the lightson the holiday decorations that provide that festive glow, but ...

The revolutionary theory of the nature of light which won Albert Einstein the 1921 Nobel prize for physics went on to remake the world. Oliver Morton surveys a century of innovation ...

CHELMSFORD, U.K.—There’s a reason why century-old approaches to lighting are still in common use on film sets. A casual survey of the trade press over the last five years or so might easily give the ...

Scientists demonstrated that scanning photocurrent microscopy could provide the optoelectronic information needed to improve the performance of devices for power generation, communications, data ...