E notation by Ciro Santilli 40 Updated 2025-07-16
What do you prefer, 1 \times 10^{10} or 1E10.
Spectroscopy Letters is a scientific journal that publishes research articles, reviews, and brief communications focused on the field of spectroscopy. Spectroscopy is a technique used to analyze the interaction between matter and electromagnetic radiation, and it has applications in various fields including chemistry, physics, material science, biology, and environmental science. The journal typically covers a wide range of topics related to spectroscopic techniques, including but not limited to infrared, ultraviolet, visible, and Raman spectroscopy.
Ancient Greek orations refer to formal speeches that were delivered in Ancient Greece, particularly during the classical period (approximately 5th to 4th centuries BCE). These orations were often characterized by their rhetorical style and were used in various contexts such as politics, law, philosophy, and public ceremonies.
Michael Coey is an Irish physicist known for his work in the field of condensed matter physics and magnetism. His research often involves magnetic materials, spintronics, and the properties of certain types of magnets, including those at the nanoscale. Coey has made significant contributions to the understanding of ferromagnetic and antiferromagnetic materials and is recognized for his academic publications and collaborative work.
"Cadae" may refer to different concepts depending on the context, as it is not a widely recognized term in mainstream English or popular culture. It might be a misspelling or variation of "CAD," which stands for computer-aided design, or it could refer to a specific product, place, or concept in a niche area.
Frank Zarnowski is known as a former professor of exercise science and a prominent figure in the field of exercise physiology and motor control. He has contributed to the understanding of human movement, sports science, and physical education. Zarnowski may also be recognized for his work in coaching and training athletes, particularly in relation to improving performance in various sports.
P. Kanagasabapathy appears to be an individual, but there isn't widespread or notable information available about them in public records or notable sources up to my last knowledge update in October 2021. They may be a figure in a specific field such as academia, politics, or local governance, but without more context, it is difficult to provide specific details.
The Olech theorem is a result in the field of mathematics, specifically in number theory and the theory of Diophantine equations. It is named after the mathematician Andrzej Olech, who proved it.
"Weaving the Web" is a book written by Tim Berners-Lee, who is best known as the inventor of the World Wide Web. Published in 1999, the book provides insights into the development of the web and discusses its potential and implications for society, technology, and communication. Berners-Lee outlines his vision for the future of the web, emphasizing the importance of open standards and the need for a web that is decentralized and accessible to everyone.
The Vakhitov–Kolokolov stability criterion is a condition used in the study of nonlinear wave phenomena, particularly in the stability analysis of solitary waves or pulses in various physical systems, such as nonlinear optics and fluid dynamics. The criterion helps determine whether a given solitary wave solution to a nonlinear partial differential equation is stable or unstable under small perturbations.
Sonnet studies is an area of literary scholarship that focuses on the analysis, interpretation, and appreciation of sonnets as a poetic form. The sonnet, which originated in Italy in the 13th century and became particularly popular in the Renaissance, is characterized by its specific structural features, such as a fixed number of lines, a particular rhyme scheme, and often a thematic organization that includes a volta (or turn in the argument or emotion).
A rictameter is a form of poetry that consists of nine lines with a specific syllable structure. The pattern of syllables for each line is as follows: 1. Two syllables 2. Four syllables 3. Six syllables 4. Eight syllables 5. Nine syllables (the central line, which is often the title or theme) 6. Eight syllables 7. Six syllables 8. Four syllables 9.
Waka is a traditional form of Japanese poetry that encompasses a variety of verse forms, the most notable of which is the **tanka**. Waka poetry typically follows a 5-7-5-7-7 syllabic structure, with five lines that consist of 31 syllables in total. The term "waka" translates to "Japanese poem," and it has a rich history that dates back over a thousand years.
A quintain, also spelled "quintet," refers to a five-line stanza or poem in the realm of poetry. There are various forms of quintains that follow different rhyme schemes and meter, but they all consist of five lines. One of the notable forms of quintain is the "English quintain," which often has a rhyme scheme such as ABABA or AABBA.
Renku is a collaborative data science platform that enables users to create, share, and publish reproducible research and data analyses. It is designed to facilitate teamwork among researchers, data scientists, and developers, allowing them to work together on projects in a transparent and organized manner. Renku supports the use of version control, similar to Git, which helps track changes in code and data over time. This makes it easier to manage project versions, collaborate effectively, and ensure that results are reproducible.
STIR/SHAKEN is a framework designed to combat caller ID spoofing and enhance the trustworthiness of caller identification in telephone networks. The initiative is particularly relevant in the context of the increasing prevalence of robocalls and fraudulent calls that misrepresent the caller's identity. **STIR** stands for "Secure Telephone Identity Revisited," and it involves a technical specification that allows for secure signaling of caller ID information, enabling the legitimate verification of the caller's identity.
"Hyperion" is a science fiction novel by Dan Simmons, published in 1989. It is the first book in the "Hyperion Cantos" series and is notable for its unique narrative structure, inspired by Geoffrey Chaucer's "The Canterbury Tales." The story is set in a distant future where humanity has spread across the galaxy, featuring a richly imagined universe filled with various cultures, advanced technology, and complex themes.

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