Blue Bottle
Methylene blue indicator solution is added to a solution containing dextrose and potassium hydroxide. When the solution is shaken, it becomes intensely blue. The color fades after several seconds, but can be re-established by shaking. This process can be repeated several times although the color changes after many shakes.
The size of the movie file is 4.4 MB and its duration is 68 seconds. The name of the movie file is "BOTLBLU.MOV" and it is located in the folder "MOVIES/BOTL".
If your browser has not brought the movie into the above space (you might be running a version of Netscape earlier than 3.0 or not have the proper plug-in), clicking on the following will possibly access the movie. Play movie.