Let There Be Cheap, Abundant Light

In just the past 36 months, light-emitting diode technology has made major strides in terms of energy efficiency, production costs, and useful applications. As a result, we're poised for a great leap forward in lighting technology and how we use it. What are the implications? Why should you care? Find out here.

The common incandescent light bulb found in any home has also been a handy source of heating for the past century.  Hatcheries use light bulbs as a heat source to warm baby chicks.  People .....

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