Flashcards and spaced repetition

Open Flashcards from any topic. Each card is generated from this revision's claims: definition cards quote a defining sentence, cloze and date cards blank one source term out of a real statement, and relationship cards ask how two source concepts connect. The answer is always taken from the retrieved text, so nothing is invented. A card marked “Direct source answer” quotes the article; “Source-derived” means it was assembled from labelled structure.

Tap the card or press Space to reveal the answer and its evidence, then rate your recall as Again, Hard, Good, or Easy. A local spaced-repetition schedule brings hard cards back sooner and eases well-known cards further out. The count of cards due now is shown above the card.

• Review schedules live in this browser's IndexedDB, never on a server.
• “Reset local progress” clears the schedule for this topic.
• “Download flashcard snapshot” exports the revision-pinned cards with source attribution.

A sparse revision may not provide enough claim-backed terms for safe cards. Novus Learn shows an empty state and links to the source rather than filling the deck with guesses.