'Star Wars' Science: How Would BB-8 Work?

Different design elements in the dynamic "Star Wars" droid BB-8. Illustration by Gianna Biocca/Office for Research and Discovery.

Associate professor Wolfgang Fink – a longtime “Star Wars” devotee and someone who spends an awful lot of time around robots – talks about the evolution of droids from R2-D2 to C-3PO to the francise's latest star, the round BB-8. 

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University of Arizona College of Engineering