About the Author
Tim Samaras, an electrical engineer and storm chaser for almost 20 years, is a highly touted National Geographic Grantee and the star of National Geographic Channel’s Disaster Lab
(2009) and Master of Disaster
(2008). He holds the Guinness World Record for measuring the lowest pressure drop of a tornado.
Stefan Bechtel is a member of Samaras’s tornado-hunting team. He is founding editor of Men’s Health,
and the author of seven books on conservation, health, and investment, which have sold more than two million copies and been translated into eight languages.