Curiosities

The European Gaze on India

Four centuries of European maps of India, from 1519 to 1946, arranged as a thematic and chronological collection. Maps chosen and arranged by me, much of the code and textual content is by Claude. The content will be updated from time to time.

Birds of the Sahyadris

A searchable field guide to the birds of the Western Ghats, with species notes, classification, status, and photographs. Species details and photos chosen and arranged by me, much of the code and textual content is by Claude, although I have tried to verify the correctness. The verification is still a work in progress, and new details/species/photos will be added from time to time.

MathQuest

An interactive mathematics learning app for children aged 7–10, with lessons, practice, quizzes, and a structured learning path. Built by Claude, more than me.

Astronomy

An interactive self-study edition of OpenStax Astronomy 2e, with the complete 30-chapter text, figures, chapter quizzes, randomised practice problems, a searchable glossary, and spaced-repetition flashcards.

Lingua Latina

A reading-centred Latin course from first principles to original texts, with structured grammar, exercises, morphology tables, spaced repetition, and a graded library of prose and poetry.

Get this as an app

Any of these projects can live on your iPhone or iPad Home Screen and open full-screen, like an app — and each one keeps working offline once you’ve opened it.

  1. Open the project you want in Safari.
  2. Tap the Share button — the square with an upward arrow, in the toolbar.
  3. Scroll down and tap Add to Home Screen.
  4. Tap Add. Its icon appears with your other apps.

On Android, open the project in Chrome, tap the ⋮ menu, and choose Install app or Add to Home screen.