NASA Lets YouTuber Steve Mould Test His "Weird Chain Theory" In SpaceNASA astronaut Don Pettit has helped YouTuber Steve Mould with the final step in his "weird chain theory": testing the idea in space.The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.In 2013, YouTuber and science communicator Steve Mould brought the "chain fountain", an...
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