Re: Amazing Facts

["Eugene P. Mosca" <mosca@nadn.navy.mil>]

On Sun, 12 May 1996, Al Bachman wrote:

> 1. The loading specification used by architects, eg 100 lbs/sq.ft, is
> used to calculated the gross loading. It is not a maximum localized
> pressure.
>
> 2. There was a passing allusion to the pressure in a tire being the
> pressure exerted on the roadway. Normal tire inflation "prestresses"
> the tire walls. An inflated tire suspended off the roadway exerts
> zero pressure on the road. The curvature of the tire walls provide
> the equilibrating forces.


Al,

In the above message you stated "An inflated tire suspended off the 
roadway exerts zero pressure on the road."  What do you mean by 
"suspended off the roadway"?

Gene

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