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It is about the size of a small human cranium, with near perfect detail. From tiny patterns near the carved surfaces, Dorland determined it was first chiseled into rough form, probably using diamonds.
In 1970, art restorer Frank Dorland was given permission to submit the skull to tests at the Hewlitt-Packard Laboratories. The skull had been carved with total disregard to the natural crystal axis, a process unheard-of in modern crystallography. Dorland was unable to find any tell-tale scratch marks. The finer shaping, grinding and polishing, Dorland believes, was done with innumerable applications of water and silicon-crystal sand. We must accept this almost unimaginable feat, or admit to the use of some form of lost technology.
The rudder is perhaps the most un-animal but airplane-like item.
Some have only a thin shell about a quarter of an inch thick, and when broken open are found filled with a strange spongy material that disintegrated into dust on contact with the air.
I get so many emails asking me about whether to date someone who is separated, recently divorced, or even fresh out of a breakup that I wanted to tackle this tricky subject.
A testimony to ancient metallurgical skills in Delhi, India is called the Ashoka Pillar.
Standing over 23 feet, it averages 16 inches in diameter and weighs about 6 tons. The smooth surface is like polished brass with only occasional instances of pock-marks and weathering.