CoSy lunch seminar 3/11/2020

  • Datum: –13.00
  • Plats: Ångströmlaboratoriet Å4001
  • Föreläsare: Attila Szilva
  • Kontaktperson: Benjamin Meco
  • Seminarium

Universal Scaling Laws of Organisms and Cities

Abstract: Animals from rats to the blues whales are built up from cells arranged in networks. The topology of the underlying networks explains the so-called Kleiber’ scaling law, which states that an animal's metabolic rate scales to the ¾ power of the animal's mass (a cat having a mass 100 times that of a mouse will consume only about 32 times the energy the mouse uses). This scaling is sublinear because the power is less than 1. In the presentation, it will be shown that the infrastructure of cities (the length of electric cables or the number of gas stations) also follows universal sublinear scaling law while in socio-economic dimensions (GDP per capita, innovation, crime) cities are superlinear. They are as a result of the individual interactions proven by a large set of mobile phone data. The concept of scaling and universality is originated in statistical physics where a large complex system emerges from simple interactions, and its behavior is almost totally independent of its microscopic structure. The talk is based mostly on the book of Geoffrey West: Scale: The Universal Laws of Growth, Innovation, Sustainability, and the Pace of Life in Organisms, Cities, Economies, and Companies. In the presentation, a possible generalization for the emergence of political parties (and social movements) will be discussed.