| Undular bores: “Typical waves measure 5 miles from peak to peak and race across the sky at 10 to 50 mph. ‘Yes, you could chase them in your car—although I wouldn’t recommend it.’ The waves don’t always travel along established roadways.” (NASA ) | ![//science.nasa.gov/headlines/y2007/images/undularbore/iowabore_strip.jpg' cannot be displayed]](http://science.nasa.gov/headlines/y2007/images/undularbore/iowabore_strip.jpg "Close Encounters?") |
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“I am the world crier, & this is my dangerous career… I am the one to call your bluff, & this is my climate.” —Kenneth Patchen (1911-1972)
