This is the inner part of a DC motor, which is used for a toy car. This kind of anatomy helps us understand how the thing work, so I often try this when it's possible.
The problem is, there are actually many things that you cannot really comprehend how they work only by simple anatomy. Smart phone is a good example for this. If you disassemble a smart phone, you'll most likely end up with finding out several IC chips, whose functions are unknown unless you're already familiar with them. So, to make the most of your anatomy, you should at least know the basics of the related engineering field. Furthermore, recent devices or gadgets are rather baded on software engineering but not on hardware. This has made an anatomy on recent products even less effective.