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A Self-Propelled Snowboard Makes Going Uphill Just as Fun
When Archimedes thought up his revolutionary water-pumping screw, little did he know that one day a group of high school students in Lyon, France would find a better use for his design. Their Propul-Surf uses a pair of horizontally-mounted screws to push a snowboard through the snow when gravity doesn't provide enough momentum. More »
Dwight A. Hunt, Sr. A+, MCP
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