A simple aluminum foil test can help find why a wall has damp spots. It shows if the problem is humidity or water leaking ...

Analog techniques require a certain precision of components' electrical properties and a good prognosis of the changes that can occur during an application. This paper introduces a method for the ...

You might be able to learn more about what's in your home's atmosphere just from using a simple glass of plain water as a tool. The way this works is with the process known as the ice cube test; it ...