Season 39, Episode 9 Deadliest Tornadoes
First Aired: April 11, 2012
The science behind the April 2011 tornado outbreak in the U.S., which saw more than 360 people killed from hundreds of twisters, is examined. Included: what caused the tornadoes; whether the tornado-prediction process can be improved.
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- Premiered: March 3, 1974
- Rating: None
- Premise: PBS's premier science-documentary series, which has won six Peabody Awards and more than 20 Emmys (four in 2002 alone) since its 1974 debut. `Nova' clearly, and often engagingly, `demystifies' a vast range of science, technology and history topics---past a… (more)