Do you know what capacitors do? For those of you who don’t know (don’t worry most people don’t know what capacitors are unless you took some electrical engineering classes in college or you are electrician/bass-head), capacitors are basically electronic parts that can store energy, almost like a battery (it is kinda of one).
Anyways, for some reason the world ends tomorrow, perhaps you can make your own capacitor (provided there’s some aluminum foil still around, you can make that too first if needed) using aluminum foil!
I am not going to bury you with all the gory details of this majestic science experiment but feel free to hit up the YouTube video below:
You can also read up on what capacitors are exactly on Wikipedia.