September 23, 2012 13:46

In 1969, the temple of the goddess Hathor at Dendera found three rather unusual bas-relief at the sight of which the researchers have an association with the bulb. But it is well known that in ancient Egyptian tombs there are no traces of soot. At the end of XX century, experts in machining stone found that the density of the plate sarcophagi so perfect, they will not only not penetrate the needle or piece of paper, but a ray of light! It is believed that the ancient masters were tools that use ultrasonic vibration. We have the technology appeared only recently.

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