The project F-session analyze the Fibonacci number by Leonardo Fibonacci, to see if there will be a possible espressive impact in the contemporary environment across a visual and sound dynamic. This mathematics theory, it was realized by Leonardo Fibonacci, with the project to find a mathematics law able to explain the rabbits sexual reproduction. This theory had many applications in various fields as the Golden ratio in architecture. In this work, the Fibonacci numbers is related to another mathematics theory, very important in the informatics field: the binary number system. In fact, each cube is represented in this way: with the number zero, the cube is off; with the number one, the cube is on. Example: a possible verticale line could be translate in 00011010011001.