Rütger Wever was a German scientist, known for his significant contributions to the field of Chronobiology, including some of the first experiments on humans in time isolated environments.
Working with his close collaborator Jürgen Aschoff, he had an underground bunker constructed in Andechs, Germany, for use as a laboratory in which human subjects could be shielded from any external time cues, including variations in light, temperature, and electromagnetic fields.
[4][5] Another seminal finding that came out of the Andechs bunker experiments, was the discovery that human sleep/wake cycles could desynchronize from the circadian rhythm of core body temperature.
The Andechs bunker was used to study human circadian rhythms under a range of conditions, including visual blindness and depression.
Wever's background in Physics allowed him to develop some of the first mathematical oscillator models of the human circadian rhythm.