The Flywheel
The Pudding A flywheel is a heavy wheel that takes effort to start spinning. The first push is hard. The second push is hard. The tenth push is hard. But somewhere around push twenty, you notice something: the wheel is helping you. Momentum has accumulated. Each push adds to the stored energy, and the wheel is now turning partly on its own. By push fifty, you are barely touching it. The wheel is doing most of the work. Your job is just to keep it from stopping. ...