The Timer

From Leonardo daVinci’s time on, clock maker’s have been respected and the world’s most gifted mechanics. A 555 Chip can make you a clockmaker. Construct a 2 minute clock, especially designed for reminding you to brush your teeth got that dentist recommended interval. Press a button to turn it on. Its light will flash while you brush. At two minutes, it will turn itself off and you are done. You can think of other uses.

Afternoon: choose to construct a beautifully simple wind up motor (again from the genius of Neil Downie) Sculpt electronic components to practice your soldering skills. Or hack, add to or decorate your timer. Invent games for it. Or take apart clocks.