Stig Östlund

fredag, september 07, 2012

Tornadoes -- Science Behind the News





Tornadoes

Tornadoes are violent, twisting columns of air with wind speeds over 100 miles per hour that can tear communities apart. Josh Wurman, an atmospheric scientist, explains that tornadoes develop in a special type of thunderstorm called a supercell, but says there are still mysteries to unravel.
Credit: NBC Learn and the National Science Behind the News 

Recommended >> http://www.nbclearn.com/portal/site/learn/science-behind-the-news

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