Flashlight description

A flashlight is a portable, battery-operated device used for illumination.
Practical, portable light sources have been seen throughout history. Torches and candles were the initial sources of light, but were largely replaced by lanterns as people learned to burn various animal and mineral oils. However, it was not until the nineteenth century that electricity was ready to make light. The modern battery powered flashlight was built in 1898 by Joshua Lionel Cowen, the original owner of the American Eveready Battery Company. Cowen originally developed an idea for decorative lighting fixture for room plants. Their fixture was made of a metal tube with a lightbulb and a dry cell battery. Cowen gave his idea to one of his Eveready salvers Konrad Hubert, who converted the metal tube, lightbulb and battery into the world's first flashlight and started selling batteries and flashlights. Over the past hundred years, flashlight has resulted in hundreds of different styles and features in technology. For example, flashlights are now made with rechargeable batteries that can be used multiple times. Other lights are designed for special operations, such as working underwater or in high temperature conditions.Eye