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  • Originally posted by chief wiggum View Post
    this kinda reflects the state governments cuts to education in the nineties, how was adam at spelling.

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    • Originally posted by llbuono View Post
      I had a look as its an interesting question, opinions vary but i found this on page 140.

      https://books.google.com.au/books?id...iction&f=false
      tyres of ordinary cars have grooves to increase friction with the road, so the car does nor skid on the road. However, tyres of racing cars are smooth to reduce friction, so they can go faster.
      opinions can vary all they like... but those who support the above statement are wrong.
      There is no 'opinion' required.
      The greatest excitement comes from besting who you were yesterday.

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      • Well that's just your opinion, man.
        Can you help with foster care?
        http://www.perthstreetbikes.com/foru...needed-163289/

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        • Originally posted by 66 View Post
          I still recall a year 10 science teacher arguing with me that racing cars use slick tyres to reduce friction so that they can go faster..


          Yeah...
          I was marked down on a project on primates because the teacher refused to believe that chimpanzees ate meat. (FFS they eat other monkeys!)

          This was an expensive private school...

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          • Did you ever notice which people in your school wanted to become teachers?

            In my experience, they almost always struggled with maths and science.
            The greatest excitement comes from besting who you were yesterday.

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            • Originally posted by 66 View Post
              opinions can vary all they like... but those who support the above statement are wrong.
              There is no 'opinion' required.
              You'll find that they're actually correct you just need to put some more thought into it.

              The friction that provides traction on slicks is not the same friction that limits top speed or acceleration with treaded tyres.

              Softer rubber compounds are used to compensate for the loss of friction.

              the dynamics are different 😊
              Do you remember the good old days before the internet?

              when arguments were only entered into by the physically or intellectually able.

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              • Originally posted by 66 View Post
                Did you ever notice which people in your school wanted to become teachers?

                In my experience, they almost always struggled with maths and science.
                And English usually, the grammar of a lot of primary/secondary school teachers is shocking judging by their facebook accounts...
                Ryan

                Originally posted by Aufitt
                Try Para045, he definitely sounds all gooey in the fork for ya

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                • Originally posted by filbert View Post
                  You'll find that they're actually correct you just need to put some more thought into it.

                  The friction that provides traction on slicks is not the same friction that limits top speed or acceleration with treaded tyres.

                  Softer rubber compounds are used to compensate for the loss of friction.

                  the dynamics are different 😊
                  So skinny don't have less grip that wider tyres?
                  Treaded tyres of the same compound will grip better than their slick counterparts?

                  I'm open to hearing the other side of this.
                  The greatest excitement comes from besting who you were yesterday.

                  Comment


                  • Originally posted by 66 View Post
                    So skinny don't have less grip that wider tyres?
                    Treaded tyres of the same compound will grip better than their slick counterparts?

                    I'm open to hearing the other side of this.
                    Slicks are used for structural integrity, aerodynamics and reduced overall friction.

                    A treaded tyre is pumping air which in itself is friction, individual blocks flex providing more grip but also a point of failure for tearing or less predictable traction limits.

                    A treaded tyre of the same compound as a slick, think wet race tyres, will tear up due to extra traction/friction and compromised integrity of the rubber surface.

                    Your slicks give you aerodynamic advantage, reduced frictional losses as heat, sound or harmonic vibration, the increased traction under race conditions comes from deformation, weight transfer and tactile adhesion of heat softened rubber that would either tear off or flex to failure as a tread block.

                    So yes slick tyres have less friction and are used to go faster because of it. You know this because you have to warm them to even be able to use them safely, the conclusion that because you can corner faster there must be more friction is flawed.
                    Do you remember the good old days before the internet?

                    when arguments were only entered into by the physically or intellectually able.

                    Comment


                    • '====
                      //`
                      -Magilla
                      They observe my perambulations upon my gyroscopically-balanced personal transportation device, and I perceive at my core that they have thus concluded that I am Caucasian, and, while intelligent, I am also somewhat socially inept. - Peculiar Alfred
                      Eligible to shadow R & R-E NOW

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                      • Originally posted by 66 View Post
                        In my experience, they almost always struggled with maths and science.
                        some years back i did most of a gradDipEd in teaching (didnt sign up for the extended practical). i couldnt help but notice that i was the only physical science major in the science curriculum class, all the other prospective science teachers (at that time) were coming from a biology background.
                        Originally posted by Bendito
                        If we get to a stop and we are missing a dozen bikes and you are last, it was your fault. Don't be that guy. No one likes that guy.

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                        • Lol... biology.

                          Yep. That's the same bunch.
                          The greatest excitement comes from besting who you were yesterday.

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                          • Edit: nothing against biology... but there where Cleary two types in those classes. Ones who nailed all subjects... and ones who needed a to pick a science class that wasn't chem or phys.
                            The greatest excitement comes from besting who you were yesterday.

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                            • i was also surprised to find during my short prac, that the physics/chem teacher whose class i was assigned to did not appear to have any background in math, physics or chem. they struggled with basic cartesian coordinate system modelling, i saw them stumped to analyse some pretty basic high school physics problem that was in a curriculum update. simple break down of a vector into xyz using trig. the kind of problem if you need to refer to worked examples its pretty obvious you have no business teaching physics.

                              it was at a public school in a very low socio economic area, dont know that that should make any difference but there it umm was at least.
                              Originally posted by Bendito
                              If we get to a stop and we are missing a dozen bikes and you are last, it was your fault. Don't be that guy. No one likes that guy.

                              Comment


                              • This is why I also think that the governments previous push to allow people with a science / eng / medical / maths etc degree do a 6 month teaching course at uni to get into teaching is a good thing. While most teachers argue that they dont get enough training to be a teacher in that period, they do generally already have a much higher level of knowledge in that feild, they would only specialise in that area of expertise, meaning very little subject based learning would need to be done. It would only be the child behavioural / phsychology etc side of things that would need to be taught.

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