LINTERNA ETERNA SIN PILAS NI BATERIAS HECHA CON MATERIALES RECUPERADOS

PCBWay: $5 for 2-layer PCBs with 24hr turnaround at: https://www.pcbway.es/?from=Caesar space Today we'll see a very simple setup that can turn any LED flashlight into a perpetual flashlight that no longer needs batteries. By simply moving a gear, we can generate energy to power it. It's very simple and a great project to do at school, and it also demonstrates the principles of thermodynamics. Don't miss it! SUBSCRIBE https://goo.gl/3G7nDc JOIN    / @el_espaciodecesar     / espaciodecesar   http://espaciodecesar.com/   / espacio_cesar     / cesarguazzaroni   Science Channels and Technique https://www.facebook.com/cdecyt/?noti... #juntamugre #ceasespace #juntamugrecesar