Transformer uses low battery voltage to charge a capacitor, which stores a charge that reaches thousands of volts. When discharged across the terminals of the rare gas filled tube, the energy is...
A camera flash provides a brief intense light to allow a picture to be captured when it would otherwise be too dark. They can also be used to provide light from a controlled direction to fill in...
Before bullets were manufactured in their own metal jackets containing the powder charge necessary to propel them, it took two ignitions of gun powder to shoot a fire arm. You pull the trigger on a...