Focus on Dendera light and discuss the Fringe interpretation.
In contrast to the mainstream interpretation, a fringe theory proposes that the reliefs depict Ancient Egyptian technology, based on comparison to similar modern devices (such as a Cathode-ray tube, Geissler tubes, Crookes tubes, and arc lamps). Norman Lockyer's passing reference to a colleague's humorous suggestion that electric lamps would explain the absence of lampblack deposits in the tombs has sometimes been forwarded as an argument supporting this particular interpretation (another argument being made is the use of a system of reflective mirrors).Proponents of this interpretation have also used a text stating that "high poles covered with copper plates were erected to break the storms coming from on high" to argue this, but Bolko Stern has written in detail explaining why the copper-covered tops of poles (which were lower than the associated pylons) do not relate to electricity or lightning, pointing out that no evidence of anything used to manipulate electricity had been found in Egypt and that this was a magical and not a technical installation.Archaeologist and debunker Kenneth Feder argued that if ancient Egyptians really had such advanced technology, some light bulb remains (glass shards, metal sockets, filaments...) should have been discovered during archaeological excavations. By applying Occam's razor, he instead highlighted the feasibility of the aforementioned reflective mirrors system, and also that the notion of adding salt to torches to minimize lampblack was well known by ancient Egyptians.
fringe theory Occam's razor lampblack Kenneth Feder debunker arc lamp Crookes tube Geissler tube Norman Lockyer Ancient Egyptian technology Cathode-ray tube