Hape Crank Powered Engine

Hape Crank Powered Engine

Hape Crank Powered Engine ($23.95)  The best thing about wooden train sets is that they run on kid-power, both in imagination and actual movement.  Well, this "little engine that can" is motorized, but still runs on kid-power.  Instead of a battery it has a hand crank that generates the electricity that makes this little guy go!  There is a bit of a practical physics lesson here, but  let's not get bogged down in electro-magnetic induction.