Re: Rhyll inquest starts

Marc Brett wrote:
On Wed, 06 Jun 2007 12:43:00 +0100, Matt B
<"matt.bourke"@nospam.london.com> wrote:

Would a 35psi car, or a 110psi bike make more of an impression on the surface of a bowling green, if driven/ridden across one at a constant speed?
I've seen the damage cars, tractors, bicycles, snowmobiles, horses, and
baby buggies do to soft ground. It's all a muddy mess. What's your
point?
I wasn't trying to make a point. I was asking a question, the answer to which would have been a valuable contribution to the discussion that was going on about tyre pressure, its effect on grip, ice penetration, etc. Do you know the answer?

No. But I'm still struggling to see how discussing performance of tyres
on soft grass has anything to do with a case involving tarmac and ice.

I thought it would help understand the nature of surfaces, and surface deformation. It is hard to imagine how ice or tarmac might react under different pressures because we cannot "see" the minute deformations that might be taking place. On grass though we have probably all experienced the different effects of different pressures. Perhaps firm wet sand, like on the beach when the tide has gone out, would be easier to visualise.

--
Matt B
.

Relevant Pages

  • This Weeks Finds in Mathematical Physics (Week 231)
    ... NASA's Cassini discovers potential liquid water on Enceladus, ... under a layer of ice, and maybe Ganymede and Callisto do too. ... ordinary temperatures and pressures. ... Each oxygen has 4 hydrogens next to it. ...
    (sci.math.research)
  • Re: Ice properties under extreme cold and pressure
    ... cooled to liquid nitrogen temperature. ... Cannot find stress-strain rate and other related data for ice at very ... and high pressures, ... find experimentally measured stress/strain curves at these pressures? ...
    (sci.materials)
  • Re: Ice properties under extreme cold and pressure
    ... Wood chips too brittle and not matching ice at very low temperatures to be ... Looks like distilled water only if ice to be used as a structural member. ... cooled to liquid nitrogen temperature. ... and high pressures, ...
    (sci.materials)
  • Re: suppose there was an earth sized watermelon?
    ... > My guess is that the core of the Earth would convert into a form of Ice ... > that is stable at relatively high temperatures and pressures (there are ...
    (sci.astro)
Loading