3 ms·
According to that article, it looks like the bags have to be grounded to work: "Snack packets are made with a foil that combines aluminum and mylar plastic, ma
by pmoriarty 4y ago
According to that article, it looks like the bags have to be grounded to work:
"Snack packets are made with a foil that combines aluminum and mylar plastic, making them electrically conductive and ideal as a temporary electromagnetic shield for mobile devices—as long as the packet is closed and grounded—and you don't mind a few crumbs on your device."
I'm not sure if that's really true, or why that is... and if it is, how one could do it while on the move.
- _carbyau_ 4y agoYeah, my understanding of the faraday cage property is that it equalizes the charge across the surface. Whether that charge is equal to ground or not is irrelevant I thought. I will make the sacrifice tonight and eat a packet of chips for testing I guess. It is a hard life.
- lobocinza 4y agoIf it's not grounded charge will accumulate on the exterior walls but I doubt it will be significant for a cellphone.