...至今只有过三种媒体（Media）——人际传播媒体（Interpersonal Medium）、大众传播媒体（Mass Medium）和 新媒体 （ New Medium ）（至于人们常说的报纸媒体、广播媒体、电视媒体、互联网媒体等，其实都是将媒体载体（Media vehicle）与媒体混为一谈了。
In addition to its historical interest, inspecting the growth of the studio system may offer clues regarding the kinds of struggles that accompany the growth of any newmedium.
If the two media have really different densities, like air and water, then most of the energy is going to be reflected back, very little of it will keep going and get transmitted into the newmedium.