What your candles and TV screen have in common

The next time you light a candle and switch on your television ready for a relaxing evening at home, just think. These two vastly different products have much more in common than you might imagine.

Making liquid crystals stand tall

Most liquid-crystalline displays contain rod-like molecules that quickly switch from one orientation to another when subjected to electric fields. This movement creates a shutter effect that turns light on and off at high ...

Solar lantern lights up rural India's dark nights

For more than 100 Indian villages cut off from grid electricity, life no longer comes to an end after dark thanks to an innovative solar-powered lantern that offers hope to the nation's rural poor.

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