From: Before It's News
In the years 1991-1993, gold prospectors on the small river Narada, on the eastern side of the Ural mountains, have found unusual, mostly spiral-shaped objects. The size of these things ranges from a maximum of 3 cm (1.2 in.) down to an incredible 0.003 mm, about 1/10,000th of an inch!
To date, these inexplicable artifacts have been found in their thousands at various sites near the rivers Narada, Kozhim, and Balbanyu, and also by two smaller streams named Vtvisty and Lapkhevozh, mostly at depths between 3 and 12 meters (10 and 40 ft.)
The spiral-form objects are composed of various metals: the larger ones are of copper, while the small and very small ones are of the rare metals tungsten and molybdenum. Tungsten has a high atomic weight, and is also very dense, with a melting point of 3410 deg. C (6100 deg. F). It is used principally for the hardening of special steels, and in unalloyed form for the filaments of light bulbs. Molybdenum also has a high density, and a respectable melting point of 2650 deg. C (4740 deg. F). This metal too is used for hardening steels and giving them corrosion-resistant properties, these being used principally for highly-stressed weapon parts and vehicle armor. All tests carried out to date these objects to around 20,000 years old.
The antikythera mechanism is currently housed in the Greek National Archaeological Museum in Athens and is thought to be one of the most complicated antiques in existence. At the beginning of the 20th century, divers off the island of Antikythera came across this clocklike mechanism, which is thought to be at least 2,000 years old, in the wreckage of a cargo ship. The device was very thin and made of bronze. It was mounted in a wooden frame and had more than 2,000 characters inscribed all over it. Though nearly 95 percent of these have been deciphered by experts, there as not been a publication of the full text of the inscription.