Whirr-Clunk! Mechanica has built a fantastic machine to pass the biscuits, but instead of passing them, it flings them across the room! The dog is very happy, but Mechanica is puzzled. A) The Tale of the Wheel and the Axle Who Loved to Go for a Spin. B) You want your puppet’s arms to move. Should you use stiff sticks or floppy strings? C) Let's do the Robot Dance with lots of whirring and clanking!