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Christoph Bültemann
Köln, Nordrhein-Westfalen, Germany
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1 Year as a User
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Last challenge activity
Seal Team Fix
Design a rapid, high-pressure seal to control failed dam conduits, safeguard wa…
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Aug. 17, 2025, 10:01 a.m. PDT
Seal Team Fix
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July 12, 2025, 12:57 p.m. PDT
Reducing Malaria in Homes with Improved Air Cavity Ventilation
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Nov. 14, 2024, 10:03 a.m. PST
Hardware-Free Horizons: The 2024 Ventora Innovation Challenge
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1 Year as a User
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