Physics

The work, day to day

Physics work looks different depending on the track, but it usually means turning a question into mathematics, building or running a model, and checking it against measurement or data. A research physicist spends real time designing experiments, running simulations, and writing up results with collaborators; a materials scientist synthesises and characterises samples in a lab; an optical or quantum-computing engineer tests hardware against a specification and debugs where theory and instrument disagree. Quant analysts apply similar modelling habits to financial data, while medical physicists calibrate imaging and radiation equipment and run safety checks in clinical settings, working alongside clinicians rather than other physicists.

The standard route is an undergraduate physics degree with a substantial mathematics component, since almost every downstream track assumes fluency with calculus, linear algebra, and statistical reasoning. Research-facing roles and medical physics typically require a postgraduate research degree and, for medical physics, supervised clinical training before independent practice, given the safety-critical nature of radiation equipment. More applied tracks — quantitative finance, optical or hardware engineering — often hire from a strong undergraduate or master's record if it comes with demonstrable coding or instrumentation experience, usually shown through research projects, an internship, or open code rather than a formal portfolio.

People who thrive tend to be patient with long feedback loops — an experiment or proof can take a long stretch to resolve — and get genuine satisfaction from a measurement finally matching a prediction. A common misconception is that physics work is mostly blackboard theory; in practice a large share of physicists spend their time building, calibrating, or coding around real instruments, which makes hands-on troubleshooting as central to the job as abstract reasoning.