Chronobiology is the science of biological time, of our daily rhythms – we call them circadian rhythms* – and the seasonal rhythms that govern our behaviour and physiology. In the course of evolution, the changing pattern of day and night across the seasons has been a powerful signal. All living organisms have internalised these external, geophysical rhythms as a biological clock. From the smallest bacteria, fungi and plants to flies and fish and mammals, living things all have a remarkably similar set of ‘clock genes’ that generate an internal cycle of about twenty-four hours.
ANNA WIRZ-JUSTICE, NEUROBIOLOGIST
Anna Wirz-Justice, ‘Daylight’, in Olafur Eliasson: In Real Life, London, 2019, p. 42.
- Circadian rhythm The circadian rhythm is any biological process produced or synthesised within an organism or system that matches a 24-hour cycle. These rhythms have been widely observed in plants, animals, fungi, and cyanobacteria. Although they exist without external cues, they can be reset by stimuli outside of the organism, such as light and heat. https://life.fondationbeyeler.ch/en/
all knowledge is recursive, inasmuch as it always involves calibrating the means of knowledge (empirical and analytical procedures, experimental protocols and tools, scales of measurement, assumptions, concepts — in short, its ‘equipment’) with the object of knowledge [...] to know something is recursively to adjust one’s body of knowledge to it.
Martin Holbraad (2013: 123) from http://www.carmah.berlin/wp-content/uploads/2020/04/tinius_macdonald_2020_recursivity_of_the_curatorial.pdf