Tuesday, March 25, 2008

Slow Motion Videos

Today in class we observed water waves in a wave tray. We saw plane waves, circular waves, and wave diffraction. We also watched a slow-motion video of a drop of milk making waves in a saucer. The link for the video is given below and shows that as the wave propagates through the milk, the original drop stays in one place. This proves that particles in a medium stay in one localized area while the wave travels through the medium.

Milk Drop:

Slow motion video of a drop of milk


Find a large collection of slow motion videos here:
Interesting High-speed Video

Wednesday, March 19, 2008

Wave Interference

Here are two great interactive web pages that show the behavior of waves when they combine. It may not sound interesting, but the combinations you can create are endless. Try creating some patterns in this first one from MIT:

Radiation in Two Dimensions (by "radiation" they mean waves)




Experiment with the effects of "loose ends" and "fixed ends" on this one from the University of Colorado:

String Wave Demo