txt.sour.is @<low-tech-magazine https://feeds.twtxt.net/low-tech-magazine/twtxt.txt> "**Human Powered Air Compressor and Energy Storage System** Image: Human powered air compressor and energy storage system. Photo by Andy Lagzdins ..."

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Human Powered Air Compressor and Energy Storage System

Image: Human powered air compressor and energy storage system. Photo by Andy Lagzdins.

When I look around my motorcycle shop, pneumatic tools are everywhere. From handheld … ⌘ Read more

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