[Billy] has a special interest in passive hydroponics (also known as the Kratky method), which is a way of growing plants in nutrient-rich water that does not circulate. As the plant grows and liquid ...

Cut valvetrain weight and scream past redline. PBM's titanium valves for Chevy and Ford heads stabilize high-revving race ...

While making our usual rounds of race shops, we came across a problem that plagues many racers and unnecessarily costs them lots of money-and we thought we'd share the solution with you. While ...

[Bob] built this simple device that can best be described as an electronic float valve. He was wasting a lot of water from overflowing water troughs and buckets around his farm. He would usually put ...