Ancient greek cranes:
The Latin root of the word crane is a crane. Because of this, the name is the long neck and the long legs of the Crane, which is not unlike cranes.
In the late sixth century BC (about 2557 years ago), a crane was built to lift heavy loads in ancient Greece. Archaeological evidence suggests that roughly 2532 years ago, distinctive rovings and cuttings were made of high nibs and Shagel Luis has been created on the stone blocks of the Greek temples.
Since these engravings point to the use of a machine, the crane for lifting objects, and since the holes (Schogel Lewis) are found on top of the gravity center block, or at intervals equal to the center of mass Gravity), known by archaeologists as evidence of the existence of a crane.
The introduction of winch winches and lift pulleys soon led to the replacement of ramps, which in the past were the main means of vertical movement. Up to 200 years later (about 2332 years ago), Greek building workshops encountered a dramatic drop in displacement, as the new technique of lifting several pieces of small pieces of stone was more practical than a few large stone blocks. Unlike the era Ancient (2817 years ago), which tended to increase the size and size of parts, the feature of the Greek temples during the classical period (2449 years ago), like the Parthenon, has always been to use rock masses weighing less than 15 tons to 20 tons. It was also possible to build large monolithic pillars using small pillar cylinders.
Although the precise conditions for replacing the Ramp with crane technology remain unclear, it has been argued that in the uncertain social and political conditions in ancient Greece, the use of small and professional construction companies is more appropriate than employing a large number of workers It was simple. In the Police City (in ancient Greece) it was much more sensible to build a crane than to hire many workers and use ramps with a steep slope, which before that time was a common practice in autocratic and tyrannical Egyptian and Assyrian vehicles.
The earliest clear evidence of Aristotle’s mechanical compounding system (Mech. 18, 853a32-853b13) appears in the literature (384 to 322 BC), but maybe the exact time of its collection was some years later. Nearly At the same time, the size of the blocks of the Greek temples began to re-match the old size, indicating that more complex spur aggregate systems were found on Greek construction sites.
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