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Douglas Callewaert
Michigan, United States
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Feb. 26, 2020, 9:10 a.m. PST
Exploring Hell: Avoiding Obstacles on a Clockwork Rover
registered for challenge
July 13, 2018, 7:57 a.m. PDT
Solar Tracking Challenge
registered for challenge
Nov. 29, 2016, 11:02 a.m. PST
Space Poop Challenge
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