Watching a hologram lecturer is an eerily realistic experience — the hologram can look you in the eye, point to you and answer your question.
The hologram might be saying the same thing as a talking head on a video screen, but it has a much stronger presence, notes David Lefevre, director of the Edtech Lab at Imperial College Business School.
The hologram works by projecting a live image of the lecturer on to a screen in front on the class. The lecturer, who must be presenting from one of the university’s several studios located across the world, has a live audio feed and a screen that shows their class. This allows them to watch and listen to students, and interact with them.
您已閱讀13%（683字），剩餘87%（4423字）包含更多重要資訊，訂閱以繼續探索完整內容，並享受更多專屬服務。