Oh god, I keep on seeing these show up on my feed and that just means one thing: People are eating it up left and right.
To be fair, it's everyone's priority to learn how these components work. I know adults, and let me emphasize the word adults who don't know what a spark plug is, but they seem to do fine in life.
This is to say, we are not less effective at this whole living thing, if we don't know how electricity or engines work, but it does mean that there is a simple disconnection in the logic.
If, I had no idea how a spark plug works, then I should not opine on how "awesome" these little gadgets are. More so, I should not conclude, having no knowledge on the matter, that:
When I have no idea of what I'm looking at to begin with.
I tried, maybe to my detriment, to explain to some people in my life how none of this makes sense. How there is no such thing as "free energy" and stupidly discussed the math on the subject. Energy losses, loads, etc.
I think I've concluded that I can't help much, because even to those around me, it seems like I'm just a skeptic guy who probably doesn't really know everything. And yes, I don't, but I do know what I'm looking at, and I have a pretty good idea as to how the fake it all.
The answer is simple: They are making money.
Yes, you are clicking the silly videos, where they connect CDs with tin foil and make a solar panel (not even kidding). You are fascinated (I don't mean you per say, but the hypothetical you) that with two spark plugs and some magnets, you can power a drill.
These videos have millions of hits, and seem to sprout like weeds. So, they will keep on making them.
I'll say this much, with the hopes that the simplicity of the explanation makes all the sense in the world.
Imagine electrical energy to be water flowing, imagine that everything that uses this water has holes in it. Imagine that through the process of the water doing what it must, it loses a lot of water. How then, will you get more water at the end of the pipe than the water you started with?
This is the analogy that sums it up. Even if you don't understand spark plugs, magnetic fields, or how a car alternator generates electricity.
What comes out can never be more that what goes in.