And if you plot a graph of angle against its sine, you’ll get a familiar and pleasantly curvaceous picture: The sine curve. It rises smoothly from a trough of -1, through 0, all the way to a ...

(2. 18) where . An interesting feature of the sine-Gordon equation is the existence of soliton and multisoliton solutions. If we look for localized waves of permanent profile of the form , such as and ...

Letter Published: 25 May 1935 A Sine Curve Crack in Natural Ice PAVEL GROSELJ Nature 135, 877 (1935) Cite this article ...