by FabWeb Editorial | Sep 5, 2015 | Curious News, New, Useful
After watching this video you will learn how to use a simple penlight batteries, a small piece of foil and wool to lay a fire. We recommend to watch it! Today we share with by the tricks that can help you to survive, and show how to lay the fire with a simple penlight...
by FabWeb Editorial | Jul 20, 2015 | Curious News, New
Scientists from Stanford University (USA) have developed a compact aluminum battery that looks like a piece of kitchen foil. The new battery negative electrode (anode) is made of aluminum, and a positively charged (cathode) – graphite. They are in a liquid salt...