Airport body scanning technology uncovers ancient Roman fresco

Terahertz spectroscopy, the imaging technology used in airport body scanners, has uncovered a hidden, ancient fresco underneath a wall painting at the Louvre.

This $5 lamp is powered by gravity (and just destroyed its funding target on Indiegogo)

It may sound like an impossible dream, but two designers in London have built functioning prototypes of GravityLight, a cheap way for people in developing countries t0 light homes, recharge batteries, or power a radio.

Commercial LED lighting provider Lumenpulse raises $16M

Lumenpulse, a developer of commercial-grade light sources that use light-emitting diodes (LEDs), announced today it has raised $16 million in its first round of funding.

The company manufactures more than a dozen kinds of LED lights, some of which can …

Philips snags $10M L Prize with energy-efficient light bulb

The U.S. Department of Energy announced today that multinational electronics company Philips has snagged $10 million in the L Prize for developing an energy-efficient light bulb powered by light emitting diodes (LEDs).

The LED bulb can generate around 900 lumens …

Cree’s new hyper-efficient light bulb may still be too expensive

Cree unveiled a new light-emitting diode (LED) light bulb that boasts the same output as a 75-watt incandescent bulb while consuming about one tenth of the electricity.

The bulb produces 152 lumens — a measure of the visible light emitted …