Arc welding using car batteries and quarters | Brian's Science and Technology |
Imagine the apocalypse has struck, zombies are running wild, and civilization as we know it has basically ceased to exist– no phone service, no Internet, no electricity. Still, you must repair a metal tool but there are no welding machines available for use. There are however, plenty of abandoned cars left scattered about and since money is now useless in a post-apocalyptic world, plenty of spare quarters that now have no economic value. How will you make hard-core repairs to steel objects or construct new tools needed for survival? With three automobile batteries, battery cables, and quarters you can create a high amperage arc welder that will create an arc of electricity that is hot enough to melt steel.