sentences:  Archaeologists Ran Barkai and Roy Liran used computers to reconstruct sunsets and recently found that when the Tower of Jericho was built, nearby mountains cast a shadow on it as the sun set on the longest day of the year.The shadow fell exactly on the structure and then spread out to cover the entire village of Jericho.In an article in the "Jerusalem Post", archaeologist Ran Barkai argued that the structure was used to create awe and inspiration to convince people into a harder way of life with the development of agriculture and social hierarchies.