These are the video books broken into short subject oriented components. The background music is removed. This eliminates the advertisements. This makes them ideal for use as classroom aids. The video books can then be reconstructed via the appropriate playlist.
Quantum Mechanics – the “How Small Is It” video book playlists:
Relativity – the “How Fast Is It” video book playlists:
Astronomy – the “How Far Away Is It” video book playlists: