Crannogs are ancient dwellings built on or near water, primarily for defensive purposes and resource access. Being situated in water provided a natural barrier against potential invaders and predators, while also facilitating fishing and transportation. Additionally, the aquatic environment offered a reliable source of food and materials for construction. These structures reflect a strategic adaptation to the surrounding landscape and its resources.
The Celts built crannogs as a form of defense against enemies or wild animals. These artificial islands provided security due to their isolated location and the difficulty of accessing them. Additionally, crannogs offered protection during times of conflict or warfare.
Venice is considered to be built on water.
The water way fort was built in the Northwest.
A water way built to carry water for navigation or irrigation is a canal.
A dam is a structure built across the water to hold water back.
It was built in the Belfast Ireland shipyard of Harland and Wolff. The vessel was not built "on water"- but next to water. It was built on a framework that allowed the completed vessel to slide down a ramp (sideways) and into the water.
Delonghi Espresso machines have built-in water reservoirs.
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Nimeta was built in 1953
Richard Arkwright built the Water Frame in 1769. It was a machine powered by water that made good yarn for making clothes.
Cities were built near sources of water.