Awarded to Werner Heisenberg for creating quantum mechanics, including its application to forms of hydrogen. The Heisenberg uncertainty relation is one route into the resulting theory.[ref]
Nobel Prize in Physics in 1933 by Codex 0 Created 2026-10-18 Updated 2026-10-20
Awarded jointly to Erwin Schrödinger and Paul Dirac for developments in atomic theory.[ref]
The Schrödinger equation and relativistic theory of the electron are two routes through that work. The Davisson–Germer experiment supplies related experimental evidence for matter waves.
Awarded to James Chadwick for discovering the neutron. The Chadwick neutron discovery experiment follows the recoil measurements and competing interpretations.[ref]
Awarded to Enrico Fermi for neutron-induced radioactivity and reactions brought about by slow neutrons. The neutron article follows the activation experiments and their interpretation.[ref]
Awarded to Ernest Orlando Lawrence for the cyclotron and results obtained with it, connecting repeated acceleration to nuclear experiments.[ref]
Awarded to Otto Stern for the molecular beam method and discovery of the proton magnetic moment. The molecular beam article develops direct measurements of particle speeds.[ref]
Awarded to Isidor Isaac Rabi for the resonance method of recording magnetic properties of atomic nuclei. The Rabi cycle article explains a driven-state model and the beam experiment.[ref]
Awarded to Percy Williams Bridgman for high-pressure apparatus and discoveries made with it. The pressure article develops the associated measurement problems.[ref]
Awarded to Edward Victor Appleton for upper-atmosphere investigations, especially the Appleton layer. The ionosphere connects this work to radio propagation.[ref]
Awarded to Cecil Frank Powell for developing the photographic method for studying nuclear reactions and discoveries about mesons made with it.[ref]

Pinned article: Introduction to the OurBigBook Project

Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
We have two killer features:
  1. topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculus
    Articles of different users are sorted by upvote within each article page. This feature is a bit like:
    • a Wikipedia where each user can have their own version of each article
    • a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
    This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
    Figure 1.
    Screenshot of the "Derivative" topic page
    . View it live at: ourbigbook.com/go/topic/derivative
  2. local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:
    This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
    Figure 5. . You can also edit articles on the Web editor without installing anything locally.
    Video 3.
    Edit locally and publish demo
    . Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact