You arrive at home after a long day and you rush to prepare food. You turn-on the burner but oups !, you realize that you activated the wrong burner. You feel frustrated and tell yourself “I should have paid more attention”. If it is a new stove, you might tell to yourself “I should have look at the instructions”. Some might even blame themselves for this error.
In September 2006, a bridge collapsed in Laval (a Montreal suburb), resulting in 5 deaths. An inquiry, the Johnson commission, is trying to understand this event and prior incidents.
As always, multiple factors are involved in this accident: bad design, shoddy construction, poor repairs and substandard construction materials. These factors are always boiled down to human errors: a design, planning, executions or maintenance errors.
LeRoi Gourhan, a French Anthropologist, observed that during pre-historic times there was a close relationship between the evolution of the human brain and the hand. In science, the experimentation plays the role of the hand. There is a close relationship between new observations and new scientific ideas.