In the video, a man is standing in front of a whiteboard that has diagrams and equations written on it. He is wearing a blue shirt and a gray vest, and he is holding a green stick in his hand. The man is pointing to the whiteboard with the stick and appears to be explaining the content of the diagrams. The whiteboard has red and green lines and shapes, and there are several equations written in black ink. The man is speaking and appears to be engaged in a lecture or presentation.