27/10/2014 Ancient Egyptians are believed to have some knowledge of electricity. From the below wall-craving, it is suggested that the drawing depicts “Dendera Light”. You can see a light-bulb like object reminiscent of an oversized light bulb; lotus flower like object is interpreted as socket of light bulb; a wavy snake-like object represents a filament wire is found inside the so-called light bulb. It is believed that this sacred knowledge on how to use electricity is well-guarded by the high priest. Of course, it could be just a coincident that the graphic shown is akin to the light-bulb we have today. This could be a preconceived idea made by us as we have associated it to something that we have familiar with, a light-bulb.