Chasing Tornadoes Onto The Big Screen08:49
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Tornado Researcher Josh Wurman with the Doppler on Wheels. (Josh Wurman)
Tornado Researcher Josh Wurman with the Doppler on Wheels. (Josh Wurman)

The new IMAX film "Tornado Alley" follows those who attempt to photograph tornadoes up close, and the researchers who study the phenomena. We speak to one of those researchers, Josh Wurman, who invented the Doppler on Wheels, and has logged over 100,000 miles following tornadoes.

This segment aired on March 21, 2011.

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