17034X803417INCHKINGBLACKORWHITETERRASTEELRIMVARIETYOF
17 Inch Steel Wheels - A wheel is a circular ingredient that is supposed to rotate with an axle bearing. The wheel is one of the many elements of the wheel and axle which are probably the six simple machines. Wheels, at the side of axles, allow heavy objects to remain moved easily facilitating movement or transportation while supporting a large quanity, or performing labor in machines. Wheels are used for other purposes, maybe a ship's wheel, tyre, potter's wheel and flywheel.Common examples are found in transport applications. A wheel greatly reduces friction by facilitating motion by rolling together while using axles. To enable wheels to rotate, some time has to be applied to the wheel about its axis, either with gravity or by the use of another external force or torque.The English word wheel derives from the Old English word hweol, hweogol, from Proto-Germanic *hwehwlan, *hwegwlan, from Proto-Indo-European *kwekwlo-, a longer way of the foundation *kwel- "to revolve, move around ".Cognates within Indo-European include Icelandic hjól "wheel, tyre", Greek κύκλος kúklos, and Sanskrit chakra, aforementioned both meaning "circle" or "wheel ".Precursors of wheels, often called "tournettes" or "slow wheels", were known inside the Middle East by the 5th millennium BCE (one of the first examples was discovered at Tepe Pardis, Iran, and dated to 5200–4700 BCE). These people were created from stone or clay and secured to the floor having a peg around the center, but required effort to turn. True (freely-spinning) potter's wheels were apparently being used in Mesopotamia by 3500 BCE and perchance as early as 4000 BCE, and the oldest surviving example, that was within Ur (modern day Iraq), dates to approximately 3100 BCE.The best proof wheeled vehicles appears during the better half on the 4th millennium BCE, near-simultaneously in Mesopotamia (Sumerian civilization), the Northern Caucasus (Maykop culture) and Central Europe (Cucuteni-Trypillian culture), in order that the question which culture originally invented the wheeled vehicle will be unsolved.The initial well-dated depiction of your wheeled vehicle (here a wagon — four wheels, two axles) is over the Bronocice pot, a c. 3500 – 3350 BCE clay pot excavated within a Funnelbeaker culture settlement in southern Poland.The oldest securely dated real wheel-axle combination, that from Stare Gmajne near Ljubljana in Slovenia (Ljubljana Marshes Wooden Wheel) is now dated in 2σ-limits to 3340–3030 BCE, the axle to 3360–3045 BCE.2 kinds of early Neolithic European wheel and axle are known; a circumalpine model of wagon construction (the wheel and axle rotate together, like Ljubljana Marshes Wheel), and on the Baden culture in Hungary (axle doesn't necessarily rotate). They both are dated to c. 3200–3000 BCE.In China, the wheel was certainly present aided by the adoption from the chariot in c. 1200 BCE,although Barbieri-Low[9] argues for earlier Chinese wheeled vehicles, c. 2000 BC.
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TITLE: | 17034X803417INCHKINGBLACKORWHITETERRASTEELRIMVARIETYOF |
IMAGE URL: | http://i.ebayimg.com/images/a/(KGrHqUOKjEE1-Z,+tklBNnVEnJBmg~~/s-l300.jpg |
THUMBNAIL: | https://tse4.mm.bing.net/th?id=OIP.5zmHFcscOaenvzcF_FcTKAEsEs&pid=Api&w=180&h=181 |
IMAGE SIZE: | 17086 B Bs |
IMAGE WIDTH: | 300 |
IMAGE HEIGHT: | 300 |
DOCUMENT ID: | OIP.5zmHFcscOaenvzcF_FcTKAEsEs |
MEDIA ID: | 88E8C1EA730C34D70F7B1C626A6FC29AB55D1522 |
SOURCE DOMAIN: | ebay.com.au |
SOURCE URL: | http://www.ebay.com.au/itm/17-X8-INCH-KING-BLACK-OR-WHITE-TERRA-STEEL-RIM-VARIETY-OF-OFFSETS-PCD-/252076004514 |
THUMBNAIL WIDTH: | 180 |
THUMBNAIL HEIGHT: | 181 |
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