Advertisement

Springer Nature is making Coronavirus research free. View research | View latest news | Sign up for updates

Comment on “Calculated Trajectories of Curling Stones Under Asymmetrical Friction: Validation of Published Models”

Abstract

It has been suggested that front–back asymmetry cannot account for the full curl distance of a curling rock [1]. It has also been proposed that this implies that front–back asymmetry cannot explain why curling rocks curl and cannot account for any of the curl distance. It is shown here that these views are inappropriate. Reasons for their erroneous statements are given. A simple analytical calculation is carried out to show that the full curl distance can be due solely to front–back asymmetry. Several examples are presented in which the front–back-asymmetric, thin-liquid-film model makes predictions which are confirmed experimentally or observationally. Consequently, the choice to dismiss this front–back asymmetry mechanism, which is made by the authors of the paper in question [1], is inappropriate.

This is a preview of subscription content, log in to check access.

References

  1. 1.

    Nyberg, H., Hogmark, S., Jacobson, S.: Calculated trajectories of curling stones under asymmetrical friction: validation of published models. Tribol. Lett. 50, 379–385 (2013)

  2. 2.

    Jensen, E.T., Shegelski, M.R.A.: The motion of curling rocks: experimental investigation and semi-phenomenological description. Can. J. Phys. 82, 791–809 (2004)

  3. 3.

    Shegelski, M.R.A., Niebergall, R.: Reply to comment on “The motion of a curling rock”. Can. J. Phys. 81, 883–888 (2003)

  4. 4.

    Shegelski, M.R.A., Niebergall, R.: The motion of rapidly rotating curling rocks. Aust. J. Phys. 59, 1025–1038 (1999)

  5. 5.

    Shegelski, M.R.A.: The motion of rapidly rotating cylinders sliding on smooth surfaces. Can. J. Phys. 79, 841–846 (2001)

  6. 6.

    Shegelski, M.R.A., Reid, M., Niebergall, R.: The motion of rotating cylinders sliding on pebbled ice. Can. J. Phys. 77, 847–862 (1999)

  7. 7.

    Shegelski, M.R.A.: Maximizing the lateral motion of a curling rock. Can. J. Phys. 79, 1117–1120 (2001)

  8. 8.

    Shegelski, M.R.A., Reid, M.: Comment on: “Curling rock dynamics” - The motion of a curling rock: inertial versus noninertial reference frames. Can. J. Phys. 79, 903–922 (1999)

  9. 9.

    Shegelski, M.R.A., Holenstein, R.: Rapidly rotating sliding cylinders: trajectories with large lateral displacements. Can. J. Phys. 80, 141–147 (2002)

  10. 10.

    Lozowski, E.P., Szilder, K., Maw, S., Morris, A., Poirier, L., Kleiner, B.: Towards a first principles model of curling ice friction and curling stone dynamics. Proceedings of the 25th International Ocean and Polar Engineering Conference 1730–1738 (2015)

Download references

Acknowledgments

This work was supported by the Natural Sciences and Engineering Research Council of Canada (NSERC), Grant Number: 180572-2011.

Author information

Correspondence to Mark R. A. Shegelski.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Shegelski, M.R.A., Reid, M. & Jensen, E.T. Comment on “Calculated Trajectories of Curling Stones Under Asymmetrical Friction: Validation of Published Models”. Tribol Lett 64, 17 (2016). https://doi.org/10.1007/s11249-016-0752-1

Download citation

Keywords

  • Curling
  • Friction
  • Asymmetry
  • Quasi-liquid film