Today in the submersibles department our hacker [Rupin Chheda] wrote in to tell us about their submarine project. This sub is made from a few lengths of PVC piping of various diameters. There is an ...

At first glance, a box of accumulated PVC pipes and fittings doesn't look like a set of gardening tools. However, if you have the time and a touch of DIY persistence, those pieces left over from ...