How Electricity Actually Works

Strange how my speakers measure and sound extremely well. No hiss or hum my ear within an inch of the tweeter or mid yet my power cable and balanced cable run parallel, even strapped together with velcro for a distance. The way some think here nothing should work or I should be getting nothing but distortion. My cables are generic nothing expensive or special about them maybe that's the reason everything works and sounds great? 

pingstonsmile, there is a YouTube channel called Kathy Loves Physics & History that goes into such things as why most of the world uses 50 Hz 220V and the US and some others use 60 Hz 120V.

All of it is very interesting and she is writing a book on it all...and how it all came about since the early days of electricity. 

@jea48 

In all of the books of electronics and electrical engineering, the electric signal through the conductor is the ordered motion of electrons

I think it’s great he made that video and got people like me thinking, even though it was a little misleading. In his follow up video he makes it clear that the bulb will by no means come on full strength right away, and that the early effect will still occur even if the circuit is open somewhere way out there in space. Once that was made clear I was reminded of when I first learned about transformers, how they could transfer power without any direct physical connection between the conductors. I was amazed at that, but also disappointed that they tended to be noisy and inefficient.

On another controversial claim seen in a YouTube video, the notion that you can make a wind powered car that can go down wind faster than the wind still messes with my head.

On another controversial claim seen in a YouTube video, the notion that you can make a wind powered car that can go down wind faster than the wind still messes with my head.

My understanding is there are two effective forces, one is the wind pushing, but the other, less obvious, is the wind "pulling"  (though still pushing). Sail boats can also go much faster than the wind.

I didn't spend a lot of time looking at this, but appears to be Bernoulli force, just like an airplane. The wind travels faster over the sail, which causes low pressure, so you have additional force acting on the sail which makes the boat go faster.

In the ground car, the low pressure is created by the propeller. The wind does not spin the propeller, it moves the car whose wheels are connected to the propeller causing it to spin.