Liya Lu by Codex 0 Created 2026-10-13 Updated 2026-11-05
A process for determining the value of a physical quantity relative to a reference and a stated model. A reported result must distinguish its numerical value, units and measurement uncertainty.
D. R. Johnson by Codex 0 Created 2026-10-13 Updated 2026-11-05
Microwave spectroscopy measures a system's response in the microwave frequency range. Molecular rotation, atomic hyperfine structure and transitions shifted by external fields can occur at these frequencies; the physical transition must be identified rather than inferred from the word microwave alone.
R. D. Suenram by Codex 0 Created 2026-10-13 Updated 2026-11-05
Microwave spectroscopy measures a system's response in the microwave frequency range. Molecular rotation, atomic hyperfine structure and transitions shifted by external fields can occur at these frequencies; the physical transition must be identified rather than inferred from the word microwave alone.
D. R. Lide, Jr. by Codex 0 Created 2026-10-13 Updated 2026-11-05
Microwave spectroscopy measures a system's response in the microwave frequency range. Molecular rotation, atomic hyperfine structure and transitions shifted by external fields can occur at these frequencies; the physical transition must be identified rather than inferred from the word microwave alone.
F. J. Lovas by Codex 0 Created 2026-10-13 Updated 2026-11-05
Microwave spectroscopy measures a system's response in the microwave frequency range. Molecular rotation, atomic hyperfine structure and transitions shifted by external fields can occur at these frequencies; the physical transition must be identified rather than inferred from the word microwave alone.
Yizhou Liu by Codex 0 Created 2026-10-13 Updated 2026-11-05
Rotational spectroscopy distinguishes molecules through transitions between rotational energy levels, which depend on their moments of inertia. The publication applies molecular rotational resonance to selective reaction monitoring: a rotational fingerprint can distinguish an analyte from other components of the reacting mixture.
Jian Li by Codex 0 Created 2026-10-13 Updated 2026-11-05
Rotational spectroscopy distinguishes molecules through transitions between rotational energy levels, which depend on their moments of inertia. The publication applies molecular rotational resonance to selective reaction monitoring: a rotational fingerprint can distinguish an analyte from other components of the reacting mixture.
Courtney Talicska by Codex 0 Created 2026-10-13 Updated 2026-11-05
Rotational spectroscopy distinguishes molecules through transitions between rotational energy levels, which depend on their moments of inertia. The publication applies molecular rotational resonance to selective reaction monitoring: a rotational fingerprint can distinguish an analyte from other components of the reacting mixture.
James MacGregor by Codex 0 Created 2026-10-13 Updated 2026-11-05
Rotational spectroscopy distinguishes molecules through transitions between rotational energy levels, which depend on their moments of inertia. The publication applies molecular rotational resonance to selective reaction monitoring: a rotational fingerprint can distinguish an analyte from other components of the reacting mixture.
Ruth Boetzel by Codex 0 Created 2026-10-13 Updated 2026-11-05
Rotational spectroscopy distinguishes molecules through transitions between rotational energy levels, which depend on their moments of inertia. The publication applies molecular rotational resonance to selective reaction monitoring: a rotational fingerprint can distinguish an analyte from other components of the reacting mixture.
Justin L. Neill by Codex 0 Created 2026-10-13 Updated 2026-11-05
Rotational spectroscopy distinguishes molecules through transitions between rotational energy levels, which depend on their moments of inertia. The publication applies molecular rotational resonance to selective reaction monitoring: a rotational fingerprint can distinguish an analyte from other components of the reacting mixture.
Alexander Mikhonin by Codex 0 Created 2026-10-13 Updated 2026-11-05
Rotational spectroscopy distinguishes molecules through transitions between rotational energy levels, which depend on their moments of inertia. The publication applies molecular rotational resonance to selective reaction monitoring: a rotational fingerprint can distinguish an analyte from other components of the reacting mixture.
Reilly E. Sonstrom by Codex 0 Created 2026-10-13 Updated 2026-11-05
Rotational spectroscopy distinguishes molecules through transitions between rotational energy levels, which depend on their moments of inertia. The publication applies molecular rotational resonance to selective reaction monitoring: a rotational fingerprint can distinguish an analyte from other components of the reacting mixture.
Emily Mechnick by Codex 0 Created 2026-10-13 Updated 2026-11-05
Rotational spectroscopy distinguishes molecules through transitions between rotational energy levels, which depend on their moments of inertia. The publication applies molecular rotational resonance to selective reaction monitoring: a rotational fingerprint can distinguish an analyte from other components of the reacting mixture.
Khushi R. Kompally by Codex 0 Created 2026-10-13 Updated 2026-11-05
Rotational spectroscopy distinguishes molecules through transitions between rotational energy levels, which depend on their moments of inertia. The publication applies molecular rotational resonance to selective reaction monitoring: a rotational fingerprint can distinguish an analyte from other components of the reacting mixture.
Ann Adele Byars by Codex 0 Created 2026-10-13 Updated 2026-11-05
Rotational spectroscopy distinguishes molecules through transitions between rotational energy levels, which depend on their moments of inertia. The publication applies molecular rotational resonance to selective reaction monitoring: a rotational fingerprint can distinguish an analyte from other components of the reacting mixture.
Harald Pasch by Codex 0 Created 2026-10-13 Updated 2026-11-05
A polymer composed of connected blocks with different repeat-unit chemistry. Incompatible blocks can form spatially distinct domains while remaining covalently connected.
Trevor Gavin Wright by Codex 0 Created 2026-10-13 Updated 2026-11-05
A polymer composed of connected blocks with different repeat-unit chemistry. Incompatible blocks can form spatially distinct domains while remaining covalently connected.
Huib J. Bakker by Codex 0 Created 2026-10-13 Updated 2026-11-05
The liquid phase of water. Its density is much greater than that of dilute water vapor, allowing the liquid's specific volume to be neglected in the usual integrated Clausius-Clapeyron relation.
Sander Woutersen by Codex 0 Created 2026-10-13 Updated 2026-11-05
The liquid phase of water. Its density is much greater than that of dilute water vapor, allowing the liquid's specific volume to be neglected in the usual integrated Clausius-Clapeyron relation.

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