Balancing a draft system is one of those things that should be easy, but inevitably ends up requiring some trial and error. The basic principle seems sound: beverage tubing supplies some characteristic resistance per unit length (2–3 psi/ft for 3/16″ ID tubing), and all one needs to do is divide that into the desired serving […]
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NASA’s developed a new material that absorbs 99.5% of visible and UV light, versus |
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