The wheel was first diagrammed on ancient clay tablets as early as 3500 BC. It was probably used initially on Mesopotamian chariots in 3200 BC. I can hardly believe the articles that I have read online that claim the wheel wasn't used anywhere in the Western Hemisphere until after contact with Europeans. Seems unfathomable.
The wheel one would think would be in every civilization since the beginning of man. If the articles I read are right the wheel wasn't used in the Inca, Aztec and Maya civilizations. Even in Europe the wheel didn't evolve much until the beginning of the nineteenth century. The industrial revolution brought the wheel into the apex of civilization. It is used in countless ways today.
Polyurethane Casters
The wheel has certainly undergone revolutionary changes in the last hundred years. For millenniums wheels were constructed of metal or wood, today we have rubber, stainless steel, polyurethane, nylon and thermoplastic rubber wheels to name a few. A major advancement for wheels was the invention of caster wheels that allows the wheel to swivel from a small steel platform allowing the wheel to turn in any direction. Think of what this means to carts, theatre and scenery props, instrument equipment, hand trucks, planter and furniture dollies just to name a few. Pneumatic casters are useful for heavy load as they protect the floor and the load.
From logs to axles to caster wheels, the changes keep coming and we each benefit from them in so many ways. We have come a long way since the ancient chariot wheel of Mesopotamian. The future looks bright indeed.
Black Friday Perch Polyurethane Industrial Stool 18-26" (Hard Floor Casters) 2011 Deals
Nov 14, 2011 12:47:48
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Black Friday Perch Polyurethane Industrial Stool 18-26" (Hard Floor Casters) Feature
- 12 Year Warranty | Lifetime on Cylinders | FREE shipping
- Seat: Self-sealing polyurethane seat. 13.5" diameter top with a 1.5" thick seating surface. (black only) Weight capacity: 300 lbs
- 360-degree adjustment lever for quick height adjustment from anywhere you reach under seat.
- Base: Durable 5-leg 24" diameter fiberglass reinforced nylon base with hooded dual wheel casters.
- Polyurethane: Constructed of high quality, puncture and slice resistant molded polyurethane. These chairs are built for demanding work environments.
Black Friday Perch Polyurethane Industrial Stool 18-26" (Hard Floor Casters) Overview
The ventilated self-skin polyurethane seat construction allows for rigorous use and features the 360° adjustment ring, a 24" base and 13.5" diameter seat upholding exacting standards great quality, functionality, and design.SAVE NOW on Black Friday offers below!
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Limited Offer Today!! Perch Polyurethane Industrial Stool 18-26" (Hard Floor Casters) Black Friday and Cyber Monday 2011 Deals
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