Physics classroom session at a Milan academic building

This image shows a close-up of a modern interior ceiling structure, featuring exposed black steel beams and a white, textured ceiling. Two long, rectangular fluorescent lights hang from the ceiling, illuminating the space. Below these, a series of black pipes, likely for ventilation or plumbing, are visible, with one pipe featuring a pattern of small holes. The lighting suggests an indoor environment with a contemporary, industrial aesthetic. The provided context indicates this scene is located in Milan, Italy.

Two male students are seated at desks in front of a blackboard covered in handwritten physics equations and diagrams. The blackboard depicts a cylindrical object with concentric layers and labels such as $S_1$, $S_2$, $r_1$, $r_2$, and $h$. The equations appear to be related to electromagnetism or electrostatics, with terms like $E$, $D$, $Q$, $\epsilon_0$, $C$, and $\Delta V$. The students are wearing dark t-shirts and are positioned facing away from the camera. The student on the left has curly brown hair, while the student on the right has tousled brown hair. In the foreground, there are red chairs and desks with some food containers visible on them. The environment appears to be a classroom or lecture hall, with fluorescent lighting fixtures visible on the ceiling. A green exit sign with a running figure is affixed to the wall on the left, along with a fire warning sign reading "VIETATO FUMARE". A white electrical box is mounted on the wall to the left of the blackboard. The scene is indoors, likely in a university setting in Milan, Italy, given the "VIETATO FUMARE" sign.

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