A quick calculation: To estimate a battery’s internal resistance, you can use a simple voltage-drop method when the open-circuit voltage, loaded voltage, and current draw are known. For example, if a ...

Insulation failure is the root cause of many electrical conductors and equipment failures. When insulation fails, not only can equipment be damaged, but fire and shock can also result. Ideally, when ...

Everyone has a plan, Mike Tyson famously said, until they get punched in the face. The endurance athlete’s version of that dictum might be: everyone has a great VO2 max and an efficient running stride ...