A lamellar structure refers to a layered arrangement of materials or phases that can be found in various contexts, including materials science, biology, and geology. The term "lamellar" is derived from "lamella," which means a thin layer or plate.
Language acquisition refers to the process by which humans learn to understand and communicate in a language. This process occurs in stages and can be divided into two main types: first language acquisition and second language acquisition. 1. **First Language Acquisition**: This typically happens in early childhood when infants and young children naturally acquire their native language without formal instruction. The process involves several stages, including cooing, babbling, single words, two-word phrases, and eventually more complex sentences.
Large-caliber cartridges refer to ammunition designed for firearms that are typically characterized by a larger diameter (caliber) of the projectile. In general, the term "large caliber" usually pertains to cartridges with diameters of .50 inches (12.7 mm) or greater, although the specific definition can vary based on context and regional usage. These cartridges are often used in military applications, for example, in anti-materiel rifles, machine guns, and artillery.
The Laser Institute of America (LIA) is a professional organization dedicated to promoting the use and advancement of laser technology in various industries. Founded in 1968, LIA serves as a resource for education, research, and networking for those involved in laser applications, including manufacturing, medical, and scientific fields. The institute offers a variety of programs, including conferences, workshops, and certification courses, aimed at providing training and enhancing understanding of laser technology and its applications.
László Fejes Tóth was a prominent Hungarian mathematician known for his contributions to several areas of mathematics, particularly in geometry and number theory. He was born on February 7, 1915, and passed away on September 8, 2005. Fejes Tóth made significant contributions to the field of discrete geometry, including work on the geometry of numbers, packing problems, and convex bodies.
László Tisza (1930–2020) was a Hungarian-born physicist known for his contributions to various fields in physics, including quantum mechanics and the theory of condensed matter. He made significant advancements in understanding phase transitions, superconductivity, and the properties of quantum fluids. Tisza, along with his contemporaries, played a pivotal role in developing theories that explain complex physical phenomena, which have implications in both theoretical and experimental physics.
A graphical timeline of the Big Bang is a visual representation that illustrates the key events and milestones in the history of the universe from its inception to its current state. Here’s a general overview of what such a timeline would include: ### Graphical Timeline of the Big Bang 1. **Singularity (t=0)**: - The universe begins. - All matter, energy, space, and time are concentrated in an infinitely small point.
Scattering is a physical phenomenon that occurs when waves (such as light, sound, or other types of electromagnetic radiation) encounter an obstacle or inhomogeneity in the medium through which they are traveling. The interaction causes the waves to be deflected or spread out in different directions. Scattering can occur with various types of waves, such as electromagnetic waves (light), acoustic waves (sound), and matter waves (like electrons).
Philippinite is a mineral that is a variety of the species known as pyrophyllite. It is characterized by its composition, which includes aluminum silicate and typically exhibits a layered or foliated structure. The name "philippinite" is derived from its first description in the Philippines, where it was discovered. Philippinite can be formed under conditions of low-grade metamorphism and is often associated with other metamorphic rocks.

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