Naturally Illinois Expo: weather balloon launch

Naturally Illinois Expo: weather balloon launch

David Kristovich, head of climate and atmospheric sciences section at the Illinois Water Survey, lets area students get up close to a weather balloon before launching one into sunny skies during the Naturally Illinois Expo outside Forbes Natural History Building in Champaign on Friday, April 17, 2015. 

Videographer/Producer: 
Heather Coit
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