COURSES
University courses
Each course in the app, with what it covers, one lesson in full and a question to try.
Kerfox is a revision app for university students, and these are its courses so far. Each one is a run of short lessons built around diagrams, and the app brings each topic back with questions just before you are likely to forget it.
Each course page lists every lesson part by part, prints one lesson whole, and ends on a question you can try, with its answer and a note on every wrong option.
Physics
The physics courses open in Kerfox so far.
Lasers and Quanta
Light and matter, the laser, fibres, quantum optics.
Revise a university course in lasers and quantum light: Einstein’s A and B coefficients, population inversion and gain, polarizers and Malus’ law, optical fibres and single photons.
Motion and Relativity
Newton to Einstein, in one course.
Revise university mechanics and special relativity: Newton’s laws, energy and momentum, rotation, gravitation and oscillation, then time dilation, the spacetime interval and mass as energy.
Energy and Matter
Kinetic theory, the four laws, entropy, phases.
Revise university thermal physics: kinetic theory and the ideal gas, the Boltzmann factor, transport, the laws of thermodynamics, entropy, the thermodynamic potentials and phase changes.
Also in the app, with pages still to come: Electricity and Magnetism; and Waves, Light and Quanta.
All university physics courses
Philosophy
The philosophy courses open in Kerfox so far.
Logic, Reason and Argument
Validity, fallacies, symbols and proof.
Revise university logic: validity and soundness, informal fallacies, categorical syllogisms, propositional and predicate logic, natural deduction proofs, and inductive and probabilistic reasoning.
Ethics
Normative theories, metaethics and moral psychology.
Revise university ethics: consequentialism, Kant, virtue ethics, the objectivity of morals, moral psychology, responsibility, rights and justice, and well-being.
Classical Indian Philosophy: Self, Knowledge, and Liberation
Ātman and no-self, the knowledge sources, and what release would be.
Revise classical Indian philosophy: the self of the Upanishads and the Buddha’s denial of it, what counts as knowing, emptiness, Samkhya and Jainism, the sceptics, and what liberation would be.
Also in the app, with a page still to come: The Mind, the Brain and Consciousness.
All university philosophy courses
GCSE and A-Level are coming soon.