German scientists have created a “living interface” to track, among other things, the toxicity of water. The focus of the process is a very small living being called a Daphnia. This creature is placed under a microscope, which then tracks and records how it moves or behaves in response to certain stimuli. The result is a sort of digital aquarium that houses the Daphnia and causes it to put forth a sort of light show and then compose a small piece of music in accompaniment. That is certainly more and more highly functional than today’s cutting-edge technologies.