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The device, housed in the remains of a wooden-framed case of (uncertain) overall size 34 cm × 18 cm × 9 cm (13.4 in × 7.1 in × 3.5 in), [15] [16] was found as one lump, later separated into three main fragments which are now divided into 82 separate fragments after conservation efforts. Four of these fragments contain gears, while ...
Earliest example found in the Giglio wreck near the Italian coast. The wooden piece already featured one fixed and a movable jaw. [16] [17] Truss roof: 550 BC [18] See List of Greco-Roman roofs: Crane: c. 515 BC Labor-saving device that allowed the employment of small and efficient work teams on construction sites. Later winches were added for ...
Human teeth were found, opening the possibility of genetic and isotopic analysis to provide information on the people who sailed the ship. Archaeologist Lorenz Baumer, overseeing the 2022 mission with the University of Geneva, described the Antikythera wreck as "an extremely rich site, the richest in the ancient world". [23]
Expedition to shipwreck in Tallinn Bay. The archaeology of shipwrecks is the field of archaeology specialized most commonly in the study and exploration of shipwrecks. [1] Its techniques combine those of archaeology with those of diving to become Underwater archaeology. However, shipwrecks are discovered on what have become terrestrial sites. [2]
This is a list of the oldest ships in the world which have survived to this day with exceptions to certain categories. The ships on the main list, which include warships, yachts, tall ships, and vessels recovered during archaeological excavations, all date to between 500 AD and 1918; earlier ships are covered in the list of surviving ancient ships.
When scientists in the 1960s excavated the wreck of an ancient Greek merchant ship off the northern coast of Cyprus, what they found was an amazing time capsule from a pivotal period in the ...
There are many reasons why underwater archaeology can make a significant contribution to our knowledge of the past. In the shipwreck field alone, individual shipwrecks can be of significant historical importance either because of the magnitude of loss of life (such as the Titanic) or circumstances of loss (Housatonic was the first vessel in history sunk by an enemy submarine).
The screw pump is the oldest positive displacement pump. [1] The first records of a water screw, or screw pump, date back to Hellenistic Egypt before the 3rd century BC. [1] [3] The Egyptian screw, used to lift water from the Nile, was composed of tubes wound round a cylinder; as the entire unit rotates, water is lifted within the spiral tube to the higher elevation.