The first evidence of carts, wheel, cars or their models, there is from the second half of 4th millennium BC. BC. Between northern Germany and Mesopotamia, z. B. In Northern Europe under the Funnel Beaker Culture and the Baden culture, in foothills of Alps in northwest and the Southern Caucasus (Maikop culture), in Mesopotamia and the Indus Valley Civilization (Karaoke on 4 Wheels).
The oldest evidence Eastern Georgia in Caucasus was 2012 in Lagodekhi, excavated to a 4,000 year old Kurgan containing two 2-axis four-wheeled cart with small rather primitive pulley wheel. This vehicle was drawn not from domesticated horses, but probably of cattle, such as the excavator of Georgian National Museum suspected.
Not until the invention of steam engine and the internal combustion engine, which led to higher transport services and speeds, the wheel were completely in iron and later steel plate welded together designed as rim. The lubricated hub sleeves were replaced by roller bearings. Wheel for low loads were provided in lightweight construction with wire spokes that are biased and loaded on train.
The design of wheel was always (later paths and roads) matched to surface to be traversed, and improves the surface corresponding to increased requirements. Steel frost on wooden rim wheel for wheelbarrows, two- or four-wheeled wagons, carts or carriages on farmland, field or boardwalks or cobbled streets or the first commercially operated electric tram in FOTG on rails.
The edge of tread was chamfered or rounded. Some faces were so well preserved that smoothing strokes of a tool can be seen. The wheel created from alder wood belonged to a car whose front could not swing. When changing the direction the draft animals dragged the front of car to side until the drawbar pointed in desired direction.
In loop but some of load and the design weight to carry, they had an advantage over other means of transport a good off-road capability. When using a sledge and rod loops usually a high sliding resistance was overcome. A transport rollers was possible only on well prepared surface and short distances.
Already in Stone Age began to reduce the heavy weight of disc wheel through grooves. Whether the fluted with symbolic patterns wheel, however, were suitable for transporting loads, is doubtful. A metal-temporal invention was the spoke, which was introduced around 2000 v. Chr. In Orient. With the stable and lightweight spoked wheel was built so-called chariot, so two-wheeled vehicles that would really be called carts. Since it was a good way to reduce the weight even more demanding wheeled tractors were built later.
Metal spokes were until the 19th century again a leader, be it due to higher loads and speeds, such as rail transport, it was after the invention of spokes fall made it possible to build very light sturdy wheel with thin taut wire spokes as they especially when today bicycle are common.
The oldest evidence Eastern Georgia in Caucasus was 2012 in Lagodekhi, excavated to a 4,000 year old Kurgan containing two 2-axis four-wheeled cart with small rather primitive pulley wheel. This vehicle was drawn not from domesticated horses, but probably of cattle, such as the excavator of Georgian National Museum suspected.
Not until the invention of steam engine and the internal combustion engine, which led to higher transport services and speeds, the wheel were completely in iron and later steel plate welded together designed as rim. The lubricated hub sleeves were replaced by roller bearings. Wheel for low loads were provided in lightweight construction with wire spokes that are biased and loaded on train.
The design of wheel was always (later paths and roads) matched to surface to be traversed, and improves the surface corresponding to increased requirements. Steel frost on wooden rim wheel for wheelbarrows, two- or four-wheeled wagons, carts or carriages on farmland, field or boardwalks or cobbled streets or the first commercially operated electric tram in FOTG on rails.
The edge of tread was chamfered or rounded. Some faces were so well preserved that smoothing strokes of a tool can be seen. The wheel created from alder wood belonged to a car whose front could not swing. When changing the direction the draft animals dragged the front of car to side until the drawbar pointed in desired direction.
In loop but some of load and the design weight to carry, they had an advantage over other means of transport a good off-road capability. When using a sledge and rod loops usually a high sliding resistance was overcome. A transport rollers was possible only on well prepared surface and short distances.
Already in Stone Age began to reduce the heavy weight of disc wheel through grooves. Whether the fluted with symbolic patterns wheel, however, were suitable for transporting loads, is doubtful. A metal-temporal invention was the spoke, which was introduced around 2000 v. Chr. In Orient. With the stable and lightweight spoked wheel was built so-called chariot, so two-wheeled vehicles that would really be called carts. Since it was a good way to reduce the weight even more demanding wheeled tractors were built later.
Metal spokes were until the 19th century again a leader, be it due to higher loads and speeds, such as rail transport, it was after the invention of spokes fall made it possible to build very light sturdy wheel with thin taut wire spokes as they especially when today bicycle are common.
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