Cool yet so simple: just a long copper coil, some small strong (rare earth – generally neodymium) magnets, and an AA or AAA battery to create a very simple engine.
Cool yet so simple: just a long copper coil, some small strong (rare earth – generally neodymium) magnets, and an AA or AAA battery to create a very simple engine.
The program reduces my planning time as I only have to plan and research for one integrated unit.
Trent Perry, Teacher