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interactive textbook

A textbook that answers as you read

Courses are split into sections: ask a question or leave a comment on any of them, and the editor publishes revisions through the API without a rebuild. The first course is about quantum technologies; the platform is multilingual.

Open the coursesSee a section
course: quantum technologiessection 3.2

Superposition and measurement

The state of a qubit is a linear combination of the basis states. A measurement collapses it into one of them with a probability set by the amplitudes, which is why the outcome of a single run cannot be predicted exactly.

reader's question · 3.2What if we measure in the X basis instead of Z — do the probabilities change?
Author's answer: yes. The probabilities depend on the measurement basis; section 3.4 works through an example.
RUENESnew revision
01 / features

Text, questions and revisions side by side

01Ask in placeThe reader asks right inside the section; the answer stays next to the text.
02Live revisionsThe editor publishes new revisions through the API and readers see them at once.
03Several languagesOne course exists in several language versions with a shared structure.
02 / reading

How a section goes

01Open a sectionA course is split into short sections, each with its own address.
02Ask in placeA question or comment is attached to that very section.
03The author answersThe answer appears next to the text — no e-mail threads.
04The section is updatedThe editor publishes a new revision through the API; readers see it immediately.
03 / for editors

Editing through the API

new revision of a section · curl
curl -X PUT https://unlearning.qublo.org/unlearning/api/courses/quantum/en/content/sections/3.2 \
  -H "Authorization: Bearer $EDITOR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"html": "<p>…</p>", "expectedBaseHash": "…", "reason": "clarified the basis"}'
No rebuildA revision is published at once: the reader sees it the next time the section opens.
Questions as a task listComments on sections are collected into a list of what to clarify in the next revision.
04 / questions

The platform in short

Do I need an account to ask a question?

Questions are asked inside a course section; the author's answer stays next to the text and is visible to the next readers.

How are the language versions related?

One course exists in several languages with the same section structure — questions and revisions are tied to the section number.

What is ready today?

The first course, on quantum technologies; the platform is multilingual and keeps growing.

Start with the first course

Quantum technologies, section by section, with questions in place and live revisions.

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