HVAC professionals across the country are experiencing a recent change that is driven by energy codes. This change is related to duct-leakage testing on new and often retrofitted HVAC systems. A lot ...

Leakage current is one of the most stringent, yet telling, parameters of possible danger to patients or caregivers. It does not take much electric current flowing through the human body to cause harm.

As the need for clean energy rises, the emerging technology behind hydrogen fuel cells becomes ever more important to the future of the environment. Using the most abundant element in the universe as ...