ศาสตราจารย์อธิบายแนวคิดบนไวท์บอร์ด

A university professor standing beside a large whiteboard in a bright classroom, explaining [key concepts of physics]. The whiteboard is filled with colorful marker diagrams, flowcharts, connecting arrows, highlighted boxes, and handwritten annotations in clear Japanese text. Medium shot capturing the professor gesturing toward the explanations, with bright indoor lighting and sharp educational infographic details.