Air-drag and the Equilibrium of Whirling Threads

@article{GOSHAWK1937AirdragAT,
  title={Air-drag and the Equilibrium of Whirling Threads},
  author={E. R. GOSHAWK},
  journal={Nature},
  year={1937},
  volume={140},
  pages={194-195}
}
IN the absence of all resistance to motion and assuming perfect flexibility, the differential equations of motion for a thread which carries a small spherical ‘bob’ and is whirled rapidly about a vertical axis by a horizontal arm give us an approximate solution for small amplitudes a plane sine wave—with reference to moving axes—leading to the well-known… CONTINUE READING