Homemade Flashlight
Throughout the months of October and November Mr. Grosinger, of Memorial High School, assigned a very unique project to my Green Technology class. The project was to make a penny battery that will light up an LED and then make a homemade flashlight that will survive a five-foot drop and continue to work. The picture above shows the start of my project which is shaving pennies, that are were made recently, because in order to make the penny battery you will need zinc and copper, and the pennies above include both in order to save materials. This picture displays the different types of oxidation because the pennies wont work if there is oxidation of the zinc or copper side. A good way to get rid of oxidation is to wash it with vinegar and file it down with sandpaper. This picture shows my penny battery placed in side where it says "Penny Battery" and a voltmeter next to it s...