都在google上了啊，aether啊，传闻是Metaphysics and mythology aether (classical element), the material supposed to fill the region of the universe above the terrestrial sphere Aether (mythology) was the personification of the "upper sky", space and heaven, in Greek mythology Science and engineering aether theories in alchemy, natural philosophy, and early modern physics that suppose a "fifth element" luminiferous aether, in late nineteenth century physics considered to be the medium through which light propagates ether, a class of chemical compounds, or specifically: diethyl ether, which has the common name "ether"