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Even in this age of computers and x-rays, archaeologists still have to use basic methods like digging and measuring to insure that they collect the best information possible. So far the data base contains "8 billion polygons and 6 thousand color images, occupying 40 gigabytes." Solving the puzzle, says the team, "will take months, possibly years." You come across a buried staircase that leads down into the desert. But today a battery of new tools is helping to bring the past back to life.

The first task of the American researchers was simple: 3-D scan each individual block into their computer. You open the first doors you see — they lead to a long passageway and an antechamber. But there are other doors, undisturbed for centuries. Archaeology, notes one of its practitioners, "has a long disreputable line of descent; its ancestors were, quite literally, grave robbers and adventurers." Foremost amongst them ranks the Italian Giovanni Belzoni.

The radiocarbon dating method is based on the fact that radiocarbon is constantly being created in the atmosphere by the interaction of cosmic rays with atmospheric nitrogen.

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This technique does not give specific ages to items.Thus, 1587 is the post quem dating of Shakespeare's play Henry V.That means that the play was without fail written after (in Latin, post) 1587. This is an informational tour in which students gain a basic understanding of geologic time, the evidence for events in Earth’s history, relative and absolute dating techniques, and the significance of the Geologic Time Scale.Chronological dating, or simply dating, is the process of attributing to an object or event a date in the past, allowing such object or event to be located in a previously established chronology.

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