Grant Petersen

Grant Petersen is a bicycle designer and the founder of Rivendell Bicycle Works. He was previously U.S. marketing director for Bridgestone Cycle, Inc., where he designed the XO series of bicycles, during the 1980s and '90s.

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How to Build a Tornado

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A New York City Minute, Frozen in Time

This short film takes you on a whirling tour of the Big Apple

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What Happened to the Milky Way?

Light pollution has taken away our ability to see the stars. Can we save the night sky?

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The Pentagon's $1.5 Trillion Mistake

The F-35 fighter jet was supposed to do everything. Instead, it can barely do anything.

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