Astrophysics is a branch of astronomy that focuses on understanding the physical properties and underlying phenomena of celestial objects and the universe as a whole. It combines principles from physics and astronomy to study a wide range of topics, including the formation, evolution, and behavior of stars, galaxies, black holes, nebulae, and the overall structure of space-time.
Mathematical artworks are creative expressions that use mathematical concepts, structures, or techniques as a fundamental part of their design, composition, or inspiration. These artworks often explore geometry, symmetry, fractals, algorithms, and patterns, allowing artists to visually interpret mathematical ideas in innovative ways. Here are some common aspects of mathematical artworks: 1. **Geometric Patterns**: Artists may create work based on geometric principles, involving shapes, tessellations, or polyhedra. M.C.
Symmetric functions are a special class of functions in mathematics, particularly in the field of algebra and combinatorics. A function is considered symmetric if it maintains its value when its arguments are permuted.
Philosophy of science is a branch of philosophy that examines the assumptions, foundations, methods, and implications of science. It seeks to understand how scientific knowledge is generated and validated, as well as the nature of scientific inquiry itself. Key topics within the philosophy of science include: 1. **Scientific Method**: Exploration of how scientific methods, including observation, experimentation, and hypothesis testing, contribute to the formation of scientific knowledge. 2. **Scientific Realism vs.
Mathematical psychology is a field of psychology that focuses on the use of mathematical models and statistical techniques to understand psychological processes and behavior. This interdisciplinary area combines principles from psychology, mathematics, statistics, and computer science to quantitatively analyze mental functions and various psychological phenomena. Key aspects of mathematical psychology include: 1. **Modeling Behavioral Processes**: Researchers create mathematical models to represent cognitive processes such as perception, memory, decision-making, and learning.
Mathematical modeling is the process of creating abstract representations of real-world phenomena using mathematical concepts and structures. It involves formulating problems in mathematical terms to analyze and predict behaviors, relationships, and outcomes within a specific context. The steps in mathematical modeling typically include: 1. **Problem Identification**: Understanding the real-world situation or phenomenon to be modeled. 2. **Assumptions**: Making simplifying assumptions to make the problem manageable while maintaining essential features of the system.
Celestial mechanics is a branch of astronomy and physics that deals with the motions and gravitational interactions of celestial bodies, such as planets, moons, asteroids, comets, and stars. It involves the application of classical mechanics, particularly Newton's laws of motion and the law of universal gravitation, to understand and predict the behavior of these bodies in space.
Unsolved problems in astronomy encompass a wide range of questions and challenges that scientists and researchers are currently grappling with. Here are some of the major unsolved problems in the field: 1. **Dark Matter and Dark Energy**: While these components are believed to make up about 95% of the universe, their exact nature remains unknown. What is dark matter? Why does dark energy have a repulsive effect and drive the acceleration of the universe's expansion?

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