You went off on a massive tangent for <b>no reason</b>. It did nothing but provide information not relevant to the title.<br><br>Also I tried making a battery with copper + aluminium but it refused to work.,(reply>), indeed my friend, indeed.,(reply>), @YouJustCantBeatMeGuy A matter of opinion and too much free time ;),(reply>), if the act of throwing away said wrapper singlehandedly made you save a rainforest and nothing else did, then the important action was singlehandedly the result of throwing away the wrapper, making it an important point in the actual act. <br><br>i mean, to each their own, its more of a difference of opinion than an objective right or wrong,(reply>), @YouJustCantBeatMeGuy Just because it led to something important doesn't make it important. For example, if I found a wrapper or something and threw it away and this led to me becoming an environmentalist and I then go on to save a rainforest(convoluted example or what?) this doesn't make the wrapper important.,(reply>), i mean, the battery wasn't invented due to the napolionic war. the battery was created before and this specific battery was created after. however, the napolionic war brought great advances in electrical uses and its current through transistors which then led to primative yes no prompts, which was the basis to binary in electronics, which then was used in computers to make every decision, which then was used to calculate trajectory and speed calculations and thrust levels etc for the spaceshop that put man on the moon. whilst the advance in electricity itself wasn't huge, what it led to certaily was and, in my mind, that makes it much more important.