[CAUT] Friction (was restrung D)

[RicB]

Interesting Steve....

So... getting back to harder then steel wire bridge pins.... and the 
standard ones.....  what say you to Freds comments about Sauters 
experiement with titanium bridge pin ?  Good idea / bad / or 50 cents of 
one and a half dozen of another ?

Cheers
RicB


    Gentlemen,

    I asked the "big tire" question way back in engineering school, and the
    explanation was that when a tire slips on concrete it is not a matter of
    exceeding a friction factor, it is actually tearing the material.  Since
    larger tires have more surface contact area, there is more material
    to tear
    which takes higher forces and results in more traction.  This is not the
    classical "friction" scenario.

    There is another situation with big tires.  If you are on wet
    concrete, then
    big tires may afford less traction because the water cannot squeeze
    out from
    under the tire.  (hydroplaning) This is a lubricated interface,
    unlike the
    one above.

    Best regards to all,
    Steve Fujan
    --