29.- Air propeller electric motor car
Remove the nut of the motor, place the red blade on the motor. Then
put the car at ground level after connecting. The car will move on the
opposite direction of the wind.
30.- Air propeller electric motor car (2)
Add a LED to each end of the switch 15, then connect it to the plate 3.
The LED will light up whilst the car is running.
ENGLISH-22