This part of the ‘Science Graffiti Wall’ is a reference to the painting Operários (1933), by the Brazilian artist Tarsila do Amaral (1886-1973). The painting represents the ethnic variety of people coming from all over Brazil to work in factories. Here are scientists and inventors who have helped to expand the knowledge and build today's society, strongly based on science and technology.
In their daily lives, scientists raise hypotheses, design experiments, collect data, formulate explanations, come up with theories ... And in this process, as in many other human activities, they are wrong, they are right, they take up ideas, discard results...
The way that leads to the explanation of natural and social events, rarely happens straightforward. Generally, it is arduous, long and sinuous. It is basically, a work exploration - sometimes, by yourself; sometimes, a joint venture.
At the center of this area there is an 'unknown face', dedicated to all those who, in their own way, help/have helped to progress in knowledge and change the world. That portrait is also an invitation for all those who want to keep a memory of their own, alongside great scientists and inventors.