AC vs DC: Powering Your Phone

Your entire existence relies on the battle between AC and DC voltage. AC is the heavy

lifter coming from power stations, constantly switching directions to travel long distances without

dying out. But your phone hates that chaos. It needs DC, the chill,

one-way flow you get from batteries and solar cells. It is basically the difference between

a wild ocean wave and a steady river. Then you have active elements like generators feeding the system,

while passive ones like resistors just sit there eating up energy. We basically trapped

lightning in a box just so you could charge your phone.