[Aztlan] King Kong, Cold Fusion and The Mayan wheel.

[Edward B. Hanna]

On 22 Aug 2006, at 3:57 PM, Lawrence Poulsen wrote:

> One of the limitations for use of  the wheel as a draft vehicle was  
> the need for an efficient way to transfer the pulling force to the  
> vehicle. A simple harness is usable for light loads but it was not  
> untill the horse collar was invented in China and later introduced  
> to Europe that the horse became usable as an efficent draft animal.  
> Such a device would be necesary even with humans as the pulling  
> force. The reason they did not use the wheel may have been simply  
> because no one had the insight to invent this necessary implement.

Larry —

Don't forget the use of the yoke, used primarily for Oxen.  I don't  
know which came first, the yoke or the horse collar.
-—

/Ed
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  Edward B. Hanna
  edwbhanna at comcast.net
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