Paul E. Langley by Codex 0 Created 2026-10-14 Updated 2026-11-05
A physiologist who coauthored a study using receptor-binding and biochemical measurements to characterize adrenergic responses in human adipocytes.[ref]
Thomas W. Burns by Codex 0 Created 2026-10-14 Updated 2026-11-05
A physiologist who coauthored a study using receptor-binding and biochemical measurements to characterize adrenergic responses in human adipocytes.[ref]
Dexter M. Easton by Codex 0 Created 2026-10-14 Updated 2026-11-05
A neuroscientist who authored an explanatory treatment of the nerve impulse from extracellular recordings. The account distinguishes the electrical signal measured outside a nerve from the underlying membrane events.[ref]
Figure 1.
Portrait of Dexter M. Easton
. Portrait identified on the Florida State University profile.
James Taylor (metrologist) by Codex 0 Created 2026-10-14 Updated 2026-11-05
James Taylor coauthored research on electronic-balance measurements of solid and liquid mass density, mass, and vessel volume. The study explained how an electromagnetic restoring force returns a loaded balance to a sensed null position, then related the readings to buoyancy and measurement calibration. It also treated pycnometer density measurement, where temperature-dependent vessel capacity must be distinguished from the balance reading.[ref]
Randall M. Schoonover by Codex 0 Created 2026-10-14 Updated 2026-11-05
Randall M. Schoonover investigated precision measurements of mass and mass density. A coauthored study used an electronic force balance to weigh a silicon crystal in air and water, applying buoyancy and measurement calibration corrections. The reported crystal density agreed with its accepted value within 2.4 parts per million.[ref]
The method obtains mass density from the two buoyant-force readings and known fluid densities; it does not require an independent measurement of the crystal's volume.[ref]
Jonathan Pearce by Codex 0 Created 2026-10-14 Updated 2026-11-05
Jonathan Pearce is a metrologist whose research develops practical temperature measurement with contact sensors. His NPL work includes improved thermocouples, models of impurity effects during metal solidification, and methods for detecting or reducing sensor calibration drift. These connect the physics of materials with the reliability of measurements in industrial conditions.[ref]
In the coauthored Guide on Secondary Thermometry: Industrial Platinum Resistance Thermometers by Jonathan Pearce and others, an important measurement problem is resistance thermometer self-heating: the electrical measuring current heats the sensor whose temperature is being inferred. The guide describes estimating the zero-current resistance from measurements at different currents, while accounting for the surrounding medium. Its treatment of electrical resistance in the leads also explains why four-terminal sensing differs from two-wire measurements. These details show how measurement uncertainty arises from the complete sensor-and-readout arrangement.[ref]
Figure 1.
Portrait of Jonathan Pearce
. Portrait identified on the National Physical Laboratory profile.
David J. Livigni by Codex 0 Created 2026-10-14 Updated 2026-11-05
David J. Livigni coauthored a comparison of two cryogenic radiometers at NIST. Comparing independently realized optical-power measurements tests consistency and helps identify systematic contributions to measurement uncertainty.[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