In the video, a man is standing in front of a large screen displaying a diagram. He is wearing a blue shirt and glasses and appears to be giving a presentation. The diagram on the screen shows a large circle with smaller circles around it, each labeled with different terms such as "neutron," "fission product," and "target nucleus." The man is pointing to the diagram and appears to be explaining the different components and their functions. The background is blurred, but it seems to be a large room with an audience.