title: RDB Web - IndexRDB Web - Index
Welcome to RDB Web, a work-in-progress putting VKSL RDB on the web.
Looking for VKSL STUDIOS?
See anything wrong? Fix it (on GitHub), or let us know (on the vksl.uk feedback form). A changelog for RDB is available at the bottom of this page.
New to RDB are spec tags: IS, and NIS, which stand for 'In Spec' and 'Not In Spec' respectively. They mark bits of content which are in, not in, or questionably covered in the relevant specifications.
Computer Science
These notes are written following the AQA 7517 Specification.
Further Maths
These notes are written following the OCR H245 Specification
Physics
These notes are written following the OCR H557 Specification.
Using RDB Web
RDB Web may take a while to load initially, or may load with the incorrect theme. Refreshing the page should resolve any issues.
RDB uses a (semi-consistent) formatting system:
- Bold content on RDB is normally used to introduce key words or concepts.
- Recently. RDB Web has had additional spec tags added to some content:
- IS, to mark content explicitly in the specification.
- NIS, to mark content explicitly not in the specification.
About RDB Web
RDB Web is a copy of my A-level notes. The notes are available in source Markdown format under the MIT license at the GitHub repository. The notes are converted from Markdown to HTML using the excellent Obsidian Webpage Export plugin.
RDB Web Changelog
Below is a changelog of RDB Web content (also viewable by looking at the GitHub repository). Only content changes are covered (not changes to the hosting, etc.).
Update on 09/04/2026 (link to GitHub)
- Added Physics notes on Our Place in the Universe.
- Added Computer Science notes on Big Data.
- Fixes across many existing pages.
Update on 02/04/2026 (link to GitHub)
- Added links to A-level subject specifications.
Update on 24/01/2026 (link to GitHub)
- Added Computer Science notes on databases and functional programming.
Update on 18/01/2026 (link to GitHub)
- Added Further Maths additional pure number theory notes on simultaneous congruences, quadratic residues, and Fermat's Little Theorem.
- Fixed footnote formatting across multiple pages.
Update on 17/01/2026 (link to GitHub)
- Added Further Maths additional pure notes on scalar triple product.
Update on 10/01/2026 (link to GitHub)
- Added Further Maths notes on differential equations, applications, and further calculus.
Update on 09/01/2026 (link to GitHub)
- Added Physics Electromagnetism notes on induction and transformers.
- Fixed complex numbers multiplication formula typo.
Update on 04/01/2025 (link to GitHub)
- Added Computer Science notes on theory of computation.
- Updated Physics notes on Simple Models of Matter with Boltzmann factor.
Update on 23/11/2025 (link to GitHub)
- Added Further Maths notes on further complex numbers, hyperbolic functions, and polar coordinates.
Update on 09/11/2025 (link to GitHub)
- Added Further Maths notes on further complex numbers with Euler's Formula, and series and induction.
Update on 04/12/2025 (link to GitHub)
- Added Physics notes on Charge and Field.
Update on 10/01/2025 (link to GitHub)
- Added Physics notes on Gas Laws and Simple Models of Matter, Radioactive Decay and Capacitor Discharge, and Out into Space.
Update on 16/07/2025 (link to GitHub)
- Added Physics notes on Out into Space.
Update on 10/06/2025 (link to GitHub)
- Reorganized Further Maths structure into Pure 1, Pure 2, Mechanics, and Additional Pure sections
- Added Further Maths notes on applications of matrices and complex numbers.
Update on 04/06/2025 (link to GitHub)
- Added Further Maths mechanics notes on dimensional analysis, momentum, impulse, circular motion, and work, energy, and power.
Update on 29/05/2025 (link to GitHub)
- Added Physics notes on Imaging and Signalling.
Update on 29/05/2025 (link to GitHub)
- Added Computer Science notes on algorithms and data representation.