As part of a series of five science-based lectures, the School was delighted to welcome Dr Philip Turner, a biophysicist with a background in Natural Sciences research and a particular interest in fundamental questions in quantum field theory and improving our understanding of biological systems.
Dr Turner’s fascinating lecture, The Physical Principles that Govern the Emergence of Biological Systems, explored how principles of physics can help explain the patterns and structures found throughout the natural world.
The talk began with an exploration of fractals and the patterns visible in the branching structures of trees, extending all the way down to cellular structures and beyond. Dr Turner then introduced the audience to quantum mechanics, discussing bosons and other subatomic particles and using examples such as the behaviour of super-cooled helium to illustrate these complex ideas.
The lecture went on to consider how biological systems can demonstrate growth based on fundamental principles of physics. Experimental evidence relating to the Schrödinger equation was used to demonstrate the emergence of petal-like structures, while experiments involving inorganic materials, including sodium silicate, showed how tree-like, branching structures can form. Dr Turner explained how processes including proton repulsion and thermal fluctuations can contribute to the creation of these fascinating fractal networks.
The talk also raised some bigger questions about the relationship between physics and biology, including how DNA and differing electrical charges within cells may influence cellular structures. With processes such as cell division and photosynthesis fundamental to life, the lecture explored the intriguing idea that quantum systems may play a role in determining the structure, and therefore the function, of biological systems.
The thought-provoking lecture prompted some insightful questions from pupils, parents and teachers and offered a fascinating glimpse into scientific research beyond the classroom. It also demonstrated the exciting possibilities that a future in science can offer, perhaps inspiring some of the School’s young scientists to follow a similar path.
The School extends its sincere thanks to Dr Turner for generously giving his time and sharing his knowledge, enthusiasm and expertise with everyone who attended.
The next lecture in the series will take place in November and will explore the subject of organ donation.
Article Written by Ms Bateman