According to ancient and medieval science, aether (Greek: αἰθήρ aithēr[2]), also spelled æther or ether, also called quintessence, is the material that fills the region of the universe above the terrestrial sphere.[citation needed] The concept of aether was used in several theories to explain several natural phenomena, such as the traveling of light and gravity. [wikipedia]
Ethernet was originally based on the idea of computers communicating over a shared coaxial cable acting as a broadcast transmission medium. The methods used were similar to those used in radio systems,[c] with the common cable providing the communication channel likened to the Luminiferous aether in 19th century physics, and it was from this reference that the name “Ethernet” was derived.[24] [wikipedia]