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Stonehenge
StonehengeIs located in Wiltshire, England.It was built from 3000-2000 B.C.It took about 1500 years to construct.Introduction
Stonehenge I (3200 B.C).Stonehenge II (2800 B.C).Stonehenge III (2100-1100 B.C).
Steps
The beginning of stonehenge was a imperfect circle created by an earthworck of a carefully constructed ditch and mound.The depth varied from 60 centimeters to almoust 2 meters.
Stonehenge I
After several centuries work began again.Northeast entrance was widened.An avenue was constructed for about 510 meters. The outer stone was replaced by another which stood 5 meters high and weights around 30 tons.Stonehenge II
The most important construction.It has 30 uprights stones and 30 pieces on top.The uprights weigh about 30 tons each.Stonehenge III
There are 83 stones and two types of rocks.The larger stones are called sarsens, having 9 meters high and 25 tones.The smaller stone are called bluestone this have 4 tones and have been transported from 225 km away.It took 30 million hours of work. There are over 900 stone-ring monuments like Stonehenge in England.FactsLithophonic stones(ringing rocks) where use to built this construction.This stone make sounds like a ringing bell.Musical instrumentWith the circles of Stonehenge eclipses can be predicted with an error about 2 hours.Perfect prediction of summer and winter solstice.Predicting ecliplses
The concentric circle around it represent each planet of our solar system.Solar system model
http://wikipedia.org http://history.co.uk http://anthropology.msu.edu
Bibliography