Instructions how to make very small train from AAA battery and magnets, how to make copper wire coil with a simple tool. Main parts you need:
-Neodymium magnets size: 1/2″ (13mm) diameter x 1/8″ (3mm) thick
-AAA battery
- Ground metal rod 5/8″ diameter or 1/2″ copper pipe, any length.
-18 or 20 gauge uncoated (bare) copper wire, we used tin plated copper wire,
This was middle school science project.
Post time: Jun-30-2017