Effective water management involves supplying water according to the real requirement, and thus measuring water is very essential step in water management systems. There are many water flow ...

I recently got a chance to design a simple device to monitor air flow in a vent. I was foiled, as the proposal demands a cheap model based on a common PC cooling fan as the air flow sensor. Although ...

When we hear the words “pitot tube,” we tend to think more of airplanes than of air ducts, but [Franci Kopač]’s guide to pitot tubes for makers shows that they can be a remarkably versatile tool for ...