Have you ever noticed the patterns of light reflected from a glass of water or a cup of coffee?
Image adopted from Wikipedia with permission of GNU; created by Heiner Otterstedt.
Image adopted from Wikipedia with permission of Creative Commons; created by Gérard Janot.
The following is an applet for analyzing the curves often seen on the surface of coffee.
Dr. Sabine Segre
Davidson Institute of Science Education
A note to the reader
If you find these explanations insufficiently clear or if you have further questions on this topic, please write about this in our forum, and we will relate to your comments. Your suggestions and constructive criticism are always welcome.
tags: