Nope, tisn't a pineapple.
It is, however, the physical manifestation of one man's decline into a previously unknown void; the 'twisted' world of electromagnetically inducing relative movement in an air gap between a stator and rotor to produce useful torque. Thanks Wikipedia.
Oh, and it is also an example of how to turn a decline into a swan dive in the most obstinate, difficult and laborious way possible.
Although I think I'm right in saying that if it's got a hand on it, and it has, then it counts as a hand tool, so that's ok then.
Don't you think it's a bit like 'Ask The Family' with Robert Robinson when he used to show a picture of a vacuum cleaner from a funny close-up angle and they had to guess what it was.