Bicicleta de 2 ruedas
Triciclo con 3 ruedas de tamaños diferentes
English text starts here
A few days ago we read about square-wheeled vehicles.
They offer smooth rides, without tilting.
We used Etoys to understand and explain how this square wheels work.
The secret is to roll them on undulated roads.
This Etoys project shows how to build a road with the adequate undulation, by adding material, shown in purple, on the flat origianl surface of the road:
The video also shows all the scripts required to make the square wheel roll over the road while the vehicle´s body, represented by the green line, stays horizontal and always at the same height.
These are some square wheeled vehicles:
4-wheel car
2-wheel bicycle model
3-wheel tricycles
Carlos Rabassa
Voluntario
Red de Apoyo al Plan Ceibal
Montevideo, Uruguay