The Egyptian temple carving that looks like a giant lightbulb

In Egypt's Hathor temple at Dendera, carved into stone is a relief that looks remarkably like a lightbulb—complete with an oval bubble, a snake curling inside, and a supporting pillar below. Per Boing Boing, a fringe theory interprets this visual resemblance as evidence of ancient Egyptian electric lighting, drawing parallels to incandescent bulbs, cathode-ray tubes, and Crookes tubes.

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