Don Burgess

Apr. 09, 2010

Tornadoes

The average warning time for a tornado is about 15 minutes. But is that enough time to get your family out of harm's way? In this segment, a look at twisters -- and how the scientists chasing them could help us get better warnings.

storm, weather, tornado, tornadoes, stormchasers, extreme weather

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Snowflake Safari

\tWinter weather means more than sledding and snowmen. Next snowstorm, grab a magnifying glass and try snowflake hunting. Bullet rosettes, stellar plates, and capped columns are just a few of the varieties of snow crystal you can find in your backyard. Kenneth Libbrecht, physicist at Caltech and snowflake expert, shares secrets of the snowflake.

\tVideo originally published on ScienceFriday.com on December 31, 2009

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