Letters to the Luminiferous Aether,  science fiction flash, is now available in Issue 482 of Bewildering Stories. The issue index is at http://www.bewilderingstories.com/issue482/index.html.

A pair of researches unlock the power of the luminiferous aether. Unfortunately, their breakthrough takes place as the theory upon which it is based becomes unpopular. Now they must find a way back.