SEISMOLOGY
























  • Computer simulation of wave reflection and transmission on string (normal-mode simulation of waves on a string with an internal boundary [Geller and Stein, 1978])

  • Light beams in a tank with a protractor back, containing air and water, display both Snell's law (from the angles the beams make) and angle dependance of the reflection coefficient (from beams' brightness).

  • Standard wave (ripple) tank demonstrations for basic wave propagation, and local variants including using the disk (from the moment of intertia demonstration) as a "core" about which diffractions can be seen.

  • Classic "Slinky" shows P and S wave particle motions

  • A stretched rubber band shows the effects of the shear modulus and density on shear wave velocity

  • Finding room size with inexpensive electronic (acoustic) distance measurement device illustrates using travel times to infer structure

  • Video simulation demonstrates relation between seismic waves in the earth and specific wave phases (e.g. ScS) [Wysession and Shore, 1994]

    Back to the demonstration page

  • To Seth Stein's Homepage
  • To John DeLaughter's Homepage

    Experiment pages:

  • Wave propagation on a string
  • Snell's Law
  • Wave speed on a rubber band
  • Travel Time measurements
    This site is under development; more pages will be available soon.

    Related pages:


  • A biography of Joseph Fourier
  • A (well-done) Snell's Law program
  • A Biography of Willebrord Snell
  • Seismic refraction experiments carried out by US scientists


    This page designed by Seth Stein
    seth@earth.northwestern.edu
    Update: Dec 04 1997