Technology results from scarcity
{"Image DocumentName": "Technology results from scarcity", "Image ImageDescription": "All cities need fresh water. This is a Greek aqueduct, basically a brick water pipe. The first aqueduct was Assyrian, but most ancient societies had them.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}