Lumen Eternal Flashlight

Photo credit: Kickstarter

Unlike other flashlights, Lumen doesn’t require batteries, ever, and that’s because it converts body heat to energy. Each one of these devices comes with a small vial of tritium, which produces luminous gas for over a decade. Users are instructed to place it directly on the light’s case so that it can be located in less than optical lighting conditions. Continue reading for a viral video showcasing amazing thermal drilling. “Lumen has relatively simple work principle – you touch TEG (Thermoelectric Generator) – small ceramic bar that can produce electric current when we provide temperature difference between upper and lower parts of TEG,” according to the company. Click here to view the first image in this week’s funny school pictures gallery. Continue reading for a viral video showcasing amazing thermal drilling.