Simple electric motor using a single neodymium magnet sphere 19 mm, a coil iron less, a small solar panel, rectifier (optional ) . A pulse motor using a single neodymium sphere VIDEO : https://www.youtube.com/watch?v=SSwhofB7v5oA pulsed motor uses short pulses of current to drive the motor, making it spin.
The neodymium magnet sphere is acting as a flywheel.
The pulse motor is one of the simplest motors and works very well under low voltages.
When magnet gets close to the reed switch, the two contacts inside the glass tube get magnetized and touch each other.
The coil iron – less pushes magnet away and making it spin.
The rotor continues to spin due to inertia until the magnetic field gets in working range of the reed switch again.