the water flowing thru the coil induces a voltage.
moving water creates a magnetic field. a magnetic field in the coil induces a voltage.
The water isn't moving. So what is creating the magnetic field?
Has to be dielectricity. You can't have magnetism without it. But to get magnetism, something else is needed. What would that be?
Rotation. The dielectricity must be rotating. Think about a coil. It's a circular shaped object, so if something moves through it or follows its dimensions, there must be a torque at some point centered within the round shape. And this torque would certainly create a spin, a rotation.
So what does it mean to induce? And what is a voltage?
We throw these terms around like we actually understand them, but do we really?
Lets take a stab at induction knowing that we are dealing with a rotation. If I do something to create a rotation centered at some point, you should be able to do the reverse of what I did as long as you use the same center point. If you use a different center point, there will be no induction or at best only partial induction.
How about voltage? Lets think about this in terms of rotation and the number of turns in a transformer. Maybe we can visualize what this electrical unit is actually telling us. Because transformer turns ratio appears to be linear, lets use the analogy of mechanical gears.
I don't know if you see what I see in this image, but I clearly see voltage being the speed of rotation at the center point of each of these two meshed gears. Voltage must have something to do with rotational velocity or the size of the rotating object. And what could be the object here? Dielectricity maybe...?
Now you see why I'm looking for creative thinkers? This is all a puzzle, but I suspect our creator has given us the tools and abilities to decipher it. We just need to think.