the entire contraption for the spring is really frickin cool! the gear cogs with only a few teeth to do their job, the revolving lock at the bottom to hold it in place (while i'm assuming the ball loads down that ramp that's built in *shrug*)

it's almost as if everything has a purpose, and next we'll see that there's like... a water wheel that is making the cogs and lock turn to pull down the spring - or something cool.

all of these give me the urge to pull out my The Incredible Machine game that i haven't touched in a few months (and before that about a decade and a half)...