How a lead-acid battery works License Creative Commons Attribution license (reuse allowed) Bill explains the essential principles of a lead-acid battery. He shows the inside of motorcycle lead-acid battery,

How a Microwave Oven Works License Creative Commons Attribution license (reuse allowed) engineerguy Bill details how a microwave oven heats food. He describes how the microwave vacuum tube, called a magnetron,

How Light Bulb Filaments Work License Creative Commons Attribution license (reuse allowed) engineerguy Bill takes apart an incandescent to show how the tungsten filament is made. He shows it in extreme