Scientists working for Ceravision, a company based in Milton Keynes, in Britain, have designed a lamp that eliminates the need for electrodes. Their device uses microwaves to transform electricity into light. It consists of a relatively small lump of aluminium oxide into which a hole has been bored. When the aluminium oxide is bombarded with microwaves generated from the same sort of device that powers a microwave oven, it generates a concentrated electric field in the void.

read more | digg story