An introduction to semiconductor physics
Science Angus Mathieson Science Angus Mathieson

An introduction to semiconductor physics

The study of solid state physics and shortly thereafter semiconductors began after the early work regarding the X-ray diffraction of crystalline materials. Indeed, it is the periodic array of atoms within crystalline materials that gives rise to both the characteristic reflections from X-ray diffraction and the energy bands that ultimately give them their semiconducting properties. As opposed to non-crystalline solids, which typically have neither [26].

In short, many of the interesting and distinguishing properties of crystalline materials comes from the interplay between the electron wave functions and the periodic arrangement of the atoms in the material. In a crystalline material, the wavelength of the electron is short and therefore highly responsive to the local periodic arrangement of the atomic potentials. Whereas in a non-crystalline material, the electron-lattice interaction is significantly diminished. Somewhere between the two, in glasses for example, the wavelengths of light are long enough that they interact with an average order in the materials over much longer length scales, that the electron wavefunctions cannot.

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The Veil of Maya (short read)
Philosophy Angus Mathieson Philosophy Angus Mathieson

The Veil of Maya (short read)

The "Veil of Maya" originates from Hindu and Buddhist philosophy and refers to the deceptive, illusory world of appearances. In Hinduism, "Maya" is often associated with the goddess who creates the illusion that the phenomenal world we see is real. In Buddhism, the concept is tied to the idea that our perceptions of the world are not the ultimate reality, but rather a deceptive overlay that prevents us from seeing the Truth.

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How to paint like Caravaggio: Master copy of “Narcissus”
Techniques, Materials Angus Mathieson Techniques, Materials Angus Mathieson

How to paint like Caravaggio: Master copy of “Narcissus”

In this article, I will talk through my thinking and painting process for a study I completed a few years ago of Caravaggio’s “Narcissus”. Copying this painting provided insights in to this more Baroque manner of painting - compared to, for example, some of the more Northern European style work - which employs different techniques.

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Creation - the antidote to nihilism
Philosophy Angus Mathieson Philosophy Angus Mathieson

Creation - the antidote to nihilism

“One must give value to their existence by behaving as if one’s very existence were a work of art.”

— Friedrich Nietzsche

Artistic creation and nihilism have held a relationship that has long captivated the minds of philosophers, artists, composers, sculptures, and all creative thinkers. Nihilism fundamentally asserts the belief that life lacks inherent meaning, purpose, or intrinsic value. It questions the existence of subjective truths and challenges conventional notions of meaning and morality. In the realm of artistic expression, the encounter with nihilism can be unsettling but necessary, leading to profound insights into human experience itself.

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Nietzsche & Rembrandt: Painting  the structure of reality
Philosophy, History Angus Mathieson Philosophy, History Angus Mathieson

Nietzsche & Rembrandt: Painting the structure of reality

Amidst the pantheon of artistic brilliance, Rembrandt stands as a luminary, a maestro of capturing souls in paint. But what secrets lie within his strokes? How did he bestow his characters with such a palpable sense of life and humanity? Prepare to embark on a journey, for an unlikely gateway reveals itself—a theatrical lens crafted by Nietzsche based on the gods of ancient Greece.

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Unveiling the Harmonies of Nature: Scientific origins of the Apollonian
Philosophy Angus Mathieson Philosophy Angus Mathieson

Unveiling the Harmonies of Nature: Scientific origins of the Apollonian

An ancient theory of Pythagoras and Aristotle proposes a universal cosmology which described the universe in terms of spheres. In this theory, the celestial entities were pinned to the spheres and their motion driven by something like musical sound. The Greeks realised that spherically shaped amphoras, with an opening of a specific size and shape, when placed in flowing air would generate beautiful “harmonious” sounds. What they had discovered was indeed musical harmony and natural frequencies.

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The meaning of everything - Part I: Duality in art
Philosophy Angus Mathieson Philosophy Angus Mathieson

The meaning of everything - Part I: Duality in art

This post is the first of a series that aims to prise open the big questions such as “who are we?”, “what does everything mean?”, even “what is the point in anything?" and use the human race’s ability to create and perceive art as a means with which to try and arrive at an answer. The grandiose and almost intractable nature of these questions has necessitated their breaking down into a series of shorter posts. Over time these will hopefully amount to a volume of work capable if not of answering the questions, at the very least provide a means with which to approach them.

This first example starts by looking at a dualism that is present in art. The thought-provoking fact that somehow, many artworks present to us not only a physical object (pieces of linen, oil, dirt, and sticky resins from trees) that appeals to our visual senses, but something that tells a story. Something that is not physical and we cannot see, but we can only sense inside the cognitive depths of our conscious, subconscious and imagination. I hope you enjoy!

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The Collective Unconscious
Philosophy Angus Mathieson Philosophy Angus Mathieson

The Collective Unconscious

Angus, you’ve written a few posts recently on these bizarre “Jungian archetypal characters”. Do these have any meaning, or are they just part of some hocus-pocus wizardry?

Excellent question. This is a challenging and deep subject and one of those in which often only the intrinsic vocabulary is used to describe it. Transferring it into plain English therefore presents a challenge. It currently also exists as a concept that means something slightly different to each and every individual. A good place to start, however, is with the “collective unconscious”, which will be the topic of this article. Once we have established what the collective unconscious is, it will become easier to detail the role the deeply metaphorical archetypes play within it. At the end of this post, I may even attempt to break the Star Wars trilogy down into an archetypal narrative - so do read on!

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The artist and the mystic
Philosophy Angus Mathieson Philosophy Angus Mathieson

The artist and the mystic

The mystic is an archetype within the Jungian framework that represents the persona that seeks a direct, unmediated experience of the divine or universal reality. The mystic is characterised by their intense, often solitary spiritual quest which involves a deepening of awareness, a heightened sensitivity to inner and outer experience, and an expansion of consciousness beyond the limits of the physical world of things.

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How to prepare a panel for oil painting
Techniques, Materials Angus Mathieson Techniques, Materials Angus Mathieson

How to prepare a panel for oil painting

Have you ever imagined the surfaces upon which the masterpieces of Giotto, Leonardo, and Raphael are painted? Have you ever wondered how these were prepared, or where they came from? Have you ever fancied yourself painting onto an exquisite, ivory-like surface rather than the dull, mass produced cotton canvases from your local art shop?

Read on to learn the traditional methods for making your own rabbit skin glue (size), gesso (primer) and applying it to a wooden panel for oil painting. It’s worth the time and effort, I promise.

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What is gesso?
Materials, Techniques Angus Mathieson Materials, Techniques Angus Mathieson

What is gesso?

Literally translated, gesso is Italian for chalk, plaster, or gypsum. In practice, this is reasonably representative of what it materially is. Indeed, the key ingredients in gesso are chalk (or other calcium-based minerals) and a binder.

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Vermeer’s techniques #1 - soft edges and rotation
Techniques Angus Mathieson Techniques Angus Mathieson

Vermeer’s techniques #1 - soft edges and rotation

In this short article, I want to highlight a subtle yet incredibly powerful technique - scumbling and soft edges. It’s a technique that was employed by all of the great masters to beautiful effect, however to keep this particular discussion short I will focus on Johannes Vermeer’s use.

At the end, I will show how this particular technique has been used in my own work.

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Hard and soft edges
Techniques Angus Mathieson Techniques Angus Mathieson

Hard and soft edges

Artists often talk about the idea of a “hard edge”, a “soft edge”, “edge quality”, “line quality” etc. but what do all of these terms mean?

Whenever you have two colours, or more importantly two values adjacent to one another, a boundary is formed between them. If the border between these two is exact with no blending or overlap - this is called a “hard edge”. I have shown the most basic example of a hard edge between a light and dark value in the first picture above…

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What is vermilion?
Materials Angus Mathieson Materials Angus Mathieson

What is vermilion?

Vermilion is a beautiful, vibrant red pigment that is synonymous with the riches of Medieval and Renaissance art. Think of Van Eyck’s Lucca Madonna, Titian’s ‘Assumption of the Virgin’, or Raphael’s ‘Small Cowper Madonna’. In this article I describe what vermilion is chemically and summarise its fascinating history as a pigment.

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A thank you
News Angus Mathieson News Angus Mathieson

A thank you

A quick thank you note to Cambridge-based photographer Elodie Giuge.

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