Comments by "Rob Fraser" (@krashd) on "How Electricity Actually Works" video.

I think the biggest thing that blew my mind about electricity was when I realised (a long time ago) that electrons don't get used up, they just move. When I was young I thought electrons were like a fuel, the sockets on the wall delivered them, and batteries were filled with them, and once they were gone your device would stop working - it really blew my mind when I learned that electrons = "work", that it's only when you drag electrons around a circuit that it does what it's supposed to, and that AC is when you drag them back and forth. I remember when I was about 13 I came up with the analogy that DC is like a chainsaw with the teeth constantly moving in one direction while AC was like a handsaw where you push and pull the teeth back and forth - the electrons don't power the device it is the mechanism moving the electrons that powers the device, if you stop the electrons from moving the device powers off. When I learned that it was like my world was turned upside down and I was thrilled and so enthused about learning more.
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