Categories

The measurement and disclosure of what an organisation did with its money: financial and management accounting, audit, and what a standard leaves room for.

The production, propagation and perception of sound, in air, in water and in solids.

The law of the executive machine: how agencies are empowered, how they must decide, and how their decisions are reviewed.

Learning after the age when anyone makes you: retraining, continuing education, and the claim that adults learn differently from children.

Aircraft and spacecraft: aerodynamics, propulsion, structures, and the guidance that puts a vehicle where it is supposed to be.

Beauty, taste and the arts as philosophical problems: what makes something a work of art, and what an aesthetic judgment is actually claiming.

The economics of food and farming: land, commodity markets, subsidy and the rural economy that depends on all three.

Machinery, irrigation and structures for farming, and the processing of what comes off the field.

The science of growing food and fibre: crops, livestock, soils and the systems that tie them together. The umbrella node -- agronomy, horticulture, forestry, fisheries and animal science hang off it and are not authored yet.

Making capable AI systems behave as intended: alignment, interpretability, robustness, and evaluation of failure modes.

The study of mathematical symbols and the rules for manipulating them, from solving equations to abstract structures.

The geometry of solution sets of polynomial equations, studied through the algebra of the rings that define them.

The arithmetic of number fields and their rings of integers, where unique factorization can fail and ideals restore it.

Attaching algebraic invariants such as homotopy and homology groups to spaces, so that shapes can be told apart by computation.

The design and analysis of methods for organizing data and solving computational problems efficiently.

The methods used to identify and quantify the chemical components of materials.

Geometry done in coordinates, where curves and surfaces become equations.

Number theory done with the tools of analysis, where questions about primes are answered by studying functions such as the Riemann zeta function.

The structure of organisms and the arrangement of their parts.

The Greek of the archaic, classical and Hellenistic periods: its dialects, its grammar, and the body of text that carries it.