From keyboard keys to camera lenses, now there's an easy way to clean all those hard-to-reach nooks and crannies. Our Electronics Cleaning Brush by OXO features two tips - a retractable brush designed to brush away crumbs and dirt, and a silicone wedge designed to reach into crevices and grab dirt and fuzz. The pen-like shape makes it easy to carry and use.
The Baghdad Battery was discovered in the village of Khuyut Rabbou’a in 1936. Baghdad battery myth was put to the test. Ten Baghdad batteries were made and lemon juice was chosen as the electrolyte to activate the electrochemical reaction between the copper and iron. When all of the batteries were linked together in series, they produced upwards of 4 volts.