Energy from Unusual Sources

A slew of entrepreneurs are looking well beyond sunlight and wind. Think: tornadoes, algae, giant kites, and lightning

Chances are that Louis Michaud is one of very few people who spend their days trying to make tornadoes. A year ago, the retired petrochemical engineer put together what looked a bit like a high-tech kiddie swimming pool. Only rather than splashes, this pool tends to generate twisters about as high as the garage.

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