Andrew Farnsworth

Oct. 09, 2009

Tracking Bird Migration

Geese head south for the winter, and the swallows return to Capistrano - but how? In this hour, we'll talk about how birds make their migratory journeys, and how scientists are trying to study their travels.

birds, migration, flight

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Michael Pollan Talks Plants and Food

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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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