Hi, this is my first real science thread on SF so go easy on me. I was thinking about how one might go about storing the power you get from a lightning bolt, and I came up with this idea. One could make the “dielectric”(insulator) material between the plates of the capacitor out of some gaseous or liquid substance. This would give the plates the ability to move (like an accordion), and thus, if you wanted to prevent arcing during the initial charge you could have the plates a bit farther apart. Moreover, because the plates can move you would be able to adjust the distance of the plates to get the maximus amount of capacitance without arcing. If you had a predictable amount of voltage you would not need this but I don’t think lightning is very predictable. So. 1. Would this be a viable way to store lightning? 2. What would make the best insulator/dielectric? Some liquid insulator, a noble gas, or just a vacuum? (I am leaning towards vacuum) 3. If you have a better idea let me know, I welcome knowledge.