题目对应教授所说："Eidophusikon" means something like representation of nature... create realistic moving scenes that change before the audiences' eyes... mechanical motions, sound, light, other special effects to create, if you will, an early multimedia production. 这说明Eidophusikon展现的是自然因素，如声音，光，机械运动等一些特殊的效果，与人无关，所以选项 B 正确。又根据后文教授所说 the "Eidophusikon" stage was actually a box可知，D 选项说法正确。综上，本题选 B 和 D。

答案: BD