Dan Grabski

The short version is that there is no short version! :) It's a bit like
airplane wings, there's a whole lot of things that make up why a wing can
make lift, and there's no real consensus as to exactly how it all fits
together (and the equal transit time theory is a gross, and incorrect,
simplification).

And that doesn't even get into how tires make grip. We do not have any
formulas that tell you exactly how much grip a tire will make based on
loading conditions and tire makeup. We have formulas based on observed data
through testing that can approximate what a tire can do, and to get even
close to an approximation, the formulas are a right nightmare (do a google
search for "Pacejka magic formula" to see what I mean).

Dan

On Mon, May 16, 2011 at 19:48, Ron and Dorothy Strasser <
rondot@spiritone.com> wrote:

> Inexperience a PIR. Extra Insurance to cover co-pay.
> We all just need a bike that does not ever crash!
> All you "engineer" type might enjoy the article in the May 7 issue of *Science
> News* (page 8). www.sciencenews.org
> "How bicycles keep the rubber on the road"
> I do not understand it, but it does make me feel the bicycle is an amazing
> invention.
> "A bicycle" should be added to everyone's disaster emergency kit!
> ron
>