Water Technology

The oldest identified constructed roadways are the stone-paved streets of the city-state of Ur, dating to circa 4000 BCE and timber roads main through the swamps of Glastonbury, England, courting to across the similar time interval. The first lengthy-distance road, which came into use around 3500 BCE, spanned 1,500 miles from the Persian Gulf to the Mediterranean Sea, but was not paved and was solely partially maintained. In round 2000 BCE, the Minoans on the Greek island of Crete built a fifty-kilometer (thirty-mile) highway main from the palace of Gortyn on the south facet of the island, by way of the mountains, to the palace of Knossos on the north side of the island. The earliest known use of wind energy is the crusing ship; the earliest record of a ship underneath sail is that of a Nile boat courting to the 8th-millennium BCE.

Approximately 50,000 years ago, the use …