This article, published in the Nature Scientific Report, explain “why humans unwittingly build fires that look the same: edifices of fuel, as tall as they are wide. The pile of fuel is permeable, air invades it by natural convection and drives the combustion.“. The article “show that the hottest pile of burning fuel occurs when the height of the pile is roughly the same as its base diameter. Future studies may address the shape effect of wind, material type, and packing. Key is why humans of all eras have been relying on this design of fire “unwittingly”. The reason is that the heat flow from fire facilitates the movement and spreading of human mass on the globe“.
This article from the Journal of Heat Transfer unveils the physics meaning of optimization, knowledge and design evolution, and why these concepts and human activities are profoundly useful for human life.
The design in nature phenomenon facilitates access for everything that flows, evolves, spreads, and is collected: river basins, atmospheric and ocean currents, animal life and migration, and technology (the evolution of the “human-and machine species,” wealth, life). This phenomenon is summarized by the constructal law: the occurrence and evolution of designs in nature, its time direction.
Notably, the constructal law accounts for contradictory end-design statements such as minimum entropy production and maximum entropy production, and minimum flow resistance and maximum flow resistance.
- Teresa Mia Bejan, Natural Law and Natural Design, DOGMA
- Daniel Arthur Lapres, On the Law as Design, Course description, International Law for the Design Industry, Parsons School of Design, Paris
- Mike Takac, The Science of Rights (video)Mike Takac, March 2015
- Mike Takac, Scientific Proof of Our Unalienable Rights. A Road to Utopia, Robertson Publishing, April 2012
The constructal law shows that lists of great or classic books are hierarchical designs that arise naturally to organize the swelling flow of literature.
- Peder Zane, What is a classic book?, http://www.toptenbooks.net/what-classic-book
- Illustration: Domenico di Michelino, La Divina Commedia di Dante (Dante and the Divine Comedy). 1465 fresco, in the dome of the church of Santa Maria del Fiore in Florence (Florence’s cathedral). Dante Alighieri is shown holding a copy of his epic poem The Divine Comedy. He is pointing to a procession of sin. Source: Wikimedia Foundation, https://commons.wikimedia.org/wiki/File:Michelino_DanteAndHisPoem.jpg
Every snowflake conforms to only one architecture: a flat star with six fishbones connected at the center.
What’s more, that structure is predictable provided that we recognize the underlying principle: first, that something flows, in this case heat, and, second, that the natural tendency of all flows is to evolve
into architectures that provide easier access.
It’s another example of the constructal law.
- Adrian Bejan, Every snowflake is NOT unique, Mechanical Engineering, January 2015, pp.40-41.
- Why Every Snowflake is NOT Unique, Duke University Professor Adrian Bejan, YouTube Video.
- Pauline Gravel, L’architecture des flocons de neige, LeDevoir.com