Hall effect by Ciro Santilli 40 Updated 2025-07-16
The voltage changes perpendicular to the current when magnetic field is applied.
Figure 1.
Hall effect experimental diagram
. Source. The Hall effect refers to the produced voltage , AKA on this setup.
An intuitive video is:
The key formula for it is:
where:
Applications:
Other more precise non-classical versions:
Aether drag hypothesis by Ciro Santilli 40 Updated 2025-07-16
Given experiments such as the Fizeau experiment and the Michelson-Morley experiment that couldn't really detect the Earth's movement across aether, people started to wonder if the Earth wasn't dragging the luminiferous aether.
"Young Sheldon" is a sitcom that serves as a prequel to "The Big Bang Theory," focusing on the childhood of Sheldon Cooper. The show premiered on September 25, 2017. The episodes revolve around Sheldon's life growing up in East Texas with his family as he navigates school and social interactions while exhibiting his exceptional intellect.
The term "Conjugal Configuration" does not refer to a widely recognized concept in mainstream literature or common discourse. It could potentially relate to various contexts, such as sociology, psychology, or even legal frameworks concerning marriage and partnership dynamics. If you are referring to a specific theory, model, or work, could you please provide more context or clarify its relevance? This would help in providing a more accurate and helpful response.
"The Locomotion Interruption" is a concept that can refer to a few different things depending on the context, but it is not widely recognized as a specific term or phenomenon. If you are referring to a particular event, project, artwork, or scientific concept, please provide more details or context to clarify what you mean.
"The Big Bang Theory" Season 11 is part of the popular American sitcom that originally aired from 2007 to 2019. Season 11 premiered on September 25, 2017, and concluded on May 10, 2018.
"The Big Bang Theory" Season 9 is the ninth installment of the popular American sitcom created by Chuck Lorre and Bill Prady. This season premiered on September 21, 2015, and concluded on May 16, 2016.
The Binomial Theorem is a fundamental result in algebra that provides a formula for expanding expressions of the form \((a + b)^n\), where \(n\) is a non-negative integer. The theorem states that: \[ (a + b)^n = \sum_{k=0}^{n} \binom{n}{k} a^{n-k} b^k \] In this formula: - \(\sum\) denotes summation.
Chebotarev's theorem is a result in number theory that deals with the distribution of roots of unity in relation to polynomial equations over finite fields. Specifically, it is often associated with the density of certain classes of primes in number fields, but it can be stated in a context relevant to roots of unity.
Human evolution theorists are scientists and researchers who study the evolutionary history of Homo sapiens and their ancestors. They explore how humans have evolved over millions of years through the lens of various scientific disciplines, including anthropology, genetics, archaeology, paleontology, and evolutionary biology. These theorists investigate the origins of humans, the evolutionary processes that have shaped our species, and the relationships among various hominins (the group that includes modern humans and our extinct relatives).
Helly's theorem is a result in combinatorial geometry that deals with the intersection of convex sets in Euclidean space. The theorem provides a condition for when the intersection of a collection of convex sets is non-empty.
Fáry's theorem is a result in the field of graph theory that states that every simple planar graph can be embedded in the plane such that its edges are represented as straight-line segments. In simpler terms, it asserts that for any graph that can be drawn on a plane without any edges crossing (i.e., it is planar), there exists a way to draw it in the same plane where all edges are straight lines.
Armin Moczek is an American evolutionary biologist known for his research on the evolution of morphological diversity, particularly in the context of insect development and adaptive radiation. He is a professor at Indiana University and has contributed significantly to the field through studies on the evolution of traits in organisms, including the role of genetic and ecological factors in shaping diversity. Moczek's work often involves the use of model organisms, such as beetles, to explore the underlying mechanisms of evolutionary change.
Angela McLean is a prominent biologist known for her work in the field of evolutionary biology and theoretical biology. She has contributed significantly to understanding the dynamics of infectious diseases and the evolution of host-parasite interactions. Her research often combines mathematical modeling with biological insights, exploring topics such as the evolution of virulence, the spread of infectious diseases, and the ecological and social factors affecting these processes. McLean has been associated with notable institutions and has published many peer-reviewed articles in scientific journals.
Jakob Johann von Uexküll (1864–1944) was a significant figure in the fields of biology and philosophy, best known for his work in biosemiotics and the study of animal behavior. He is often credited with introducing the concept of the "Umwelt," which refers to the self-centered world or "environment" that an organism perceives and interacts with. This concept emphasizes that different species perceive their environments in unique ways based on their sensory and cognitive capacities.

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 2.
    You can publish local OurBigBook lightweight markup files to either https://OurBigBook.com or as a static website
    .
    Figure 3.
    Visual Studio Code extension installation
    .
    Figure 4.
    Visual Studio Code extension tree navigation
    .
    Figure 5.
    Web editor
    . 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.
    Video 4.
    OurBigBook Visual Studio Code extension editing and navigation demo
    . Source.
  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