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Yukan Yanagawa
Heiwajima, Tokyo Prefecture, Japan
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Oct. 25, 2017, 1:01 p.m. PDT
ArtxTechforGood: Design a GIF for Good
registered for challenge
Oct. 25, 2017, 12:56 p.m. PDT
Seeking ice advice: NextEra Energy Resources, LLC, Wind Turbine Challenge
registered for challenge
Oct. 14, 2017, 2:14 p.m. PDT
Island of Happiness Coastal Design Competition
registered for challenge
