Skylapse.org: "Rossby Waves in a Tank"

While this lapse is not of the sky, it has a lot to do with what is found in the sky. There is an entire site at MIT dedicated to these neat "tank" experiments.

Purpose

The skylapse.org blog is a collection of video embeds, animated gifs, and other illustrations that reveal atmospheric features that may be normally subtle or elusive in real-time, but come to life when the time-lapse technique is applied. The sole intention of creating the blog was to generate a library of ready-to-use visual atmospheric illustrations for pedagogical purposes. While some of the imagery in the blog is my own, most are derived from video sharing sites and, subsequently, embedded or hyperlinked. Please use the "labels" feature below to quickly find examples of phenomena.