When Jane Davidson approached me with an invitation to produce an issue of the Journal of Solar Energy Engineering devoted to solarthermal industrial processing, I jumped at the chance.

For some time I have been mindful of the social, economic, and political needs for the development of an attractive technology which would reduce the dependence of energy apprehensive nations on energy rich ones. In the past decades we have seen that energy apprehension can lead to nations’ loss of freedom of action, unholy political alliances, and to wars. We have also seen that nations that refuse to recognize that substantial free enterprise is an essential ingredient of their economic, social, and technical well-being are doomed to failure. Now we are being reminded, as we have learned over the centuries, that we cannot depend entirely on a liassez-faire economy to ensure our well being over the...

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