When investigating modern flashlight technology, advances in bulbs and design are indeed revolutionary, but the most fundamental aspect of the flashlight, the power source, has also enjoyed the most remarkable change in design. Indeed, in the beginning of flashlight history was defined by the challenging aspect of reliable power. The initial flashlights used non-efficient carbon-filament type bulbs, “resting” was essential at short intervals. The name, flashlight, is in existence because, although a life-saving piece of equipment, the first design could only sustain its illumination in sporadic intervals… leading to the nickname highlighting a temporal ‘flash’ of light. Continue reading Flashlights: The Powering of Modern Illumination
