Developed by Leonardo da Vinci, one of the most amazing engineers ever born, it is an example of a bridge that you can build without the need for a hammer and nail, using only long boards and wooden rods.
The working logic lies in the fact that the materials used can be clamped without sliding together. The parts that lean against each other never slip, so no collapse occurs.
The reason the parts do not slip is because the weight riding on the system is precisely centred on the wooden rods. Each board, placed parallel to the bridge, presses the wooden bars on which they rest against each other. This, in turn, allows the bridge parts to be clamped together as the weight increases on the bridge.
Assuming that the material quality is at the maximum level: the greater the weight you climb on this bridge, the tighter it clings to the parts that make up it.