An example of an outdoor theater setup, with a 100-inch Elite Screens Yard Master 2 screen and the Nebula Mars 3 projector mounted on the Vanguard Alto Pro2+ tripod. Adrienne Maxwell/NYT ...

A capacitor is ideally considered as a pure capacitance, but under practical conditions, it also exhibits some resistive and inductive properties, called valent series resistance (ESR) and equivalent ...