Atmospheric vortex engines : or, more evocatively, giant, human-controlled tornados. [more inside]
posted by louigi on Jun 27, 2008 - 39 comments

Undular Bore Waves
posted by geos on Oct 19, 2007 - 17 comments

Twenty-nine years ago today, a single storm spawned 148 tornadoes across the American Midwest, including twenty-three F4 and six F5 tornadoes. Here are a couple of sites about this incredible storm. If you're feeling a little uneasy after seeing some of these images, maybe you can assuage your fear by boning up on your tornado safety tips; and, as an added bonus, learn how to detect tornadoes using your television.
posted by Johnny Assay on Apr 3, 2003 - 23 comments