Universal science can refer to a broad and holistic approach to scientific inquiry that seeks to encompass and integrate knowledge across various disciplines. It emphasizes the interconnectedness of different fields of study and aims to develop a comprehensive understanding of natural and social phenomena.
The Bjerrum length is a fundamental concept in physical chemistry and statistical mechanics, particularly in the study of ionic solutions and polyelectrolytes. It is defined as the distance at which the electrostatic interaction energy between two charges (or two ions) is comparable to the thermal energy kT, where \( k \) is the Boltzmann constant and \( T \) is the absolute temperature in Kelvin.
Chemical mixtures are combinations of two or more substances that retain their individual properties and can be physically separated. Unlike chemical compounds, where elements are chemically bonded in fixed ratios, the components of a mixture can vary in proportion and do not undergo any chemical changes when combined. Mixtures can be classified into two main categories: 1. **Homogeneous mixtures**: These have a uniform composition throughout.
Physical chemistry journals are academic publications that focus on the study of the physical properties and behaviors of chemical systems. These journals publish original research articles, reviews, and other scholarly works that explore the intersection of physics and chemistry, often emphasizing theoretical and experimental techniques used to understand chemical processes at the molecular and atomic levels. Key areas of focus in physical chemistry include: 1. **Thermodynamics**: The study of heat, energy, and work in chemical systems.
An aerosol is a suspension of fine solid particles or liquid droplets in a gas. The gas is typically air, and the particles can be composed of various materials, including water, chemicals, or biological substances. Aerosols can be naturally occurring, such as fog, smoke, and dust, or they can be manmade, resulting from activities like spray painting, the use of aerosol cans, or industrial processes.
Chemical equilibrium is a state in a reversible chemical reaction where the rates of the forward and reverse reactions are equal, resulting in no net change in the concentrations of the reactants and products over time. At this point, the concentrations of all species remain constant, although they are not necessarily equal. Key characteristics of chemical equilibrium include: 1. **Dynamic Condition**: Even though the concentrations of reactants and products remain constant, the reactions are still occurring.
An elementary reaction is a basic chemical reaction that occurs in a single step, involving a direct interaction between reactants to form products. In other words, it represents an individual component of a reaction mechanism, describing the actual molecular event rather than a series of steps. Elementary reactions are characterized by their rate laws, which can be derived directly from their stoichiometry. For example: 1. **Unimolecular reaction**: Involves a single reactant molecule decomposing or reacting.
The Goldman equation, also known as the Goldman equation for membrane potential, is a mathematical formula used to calculate the membrane potential of a cell based on the concentrations of different ions inside and outside the cell. It accounts for the permeability of the membrane to these ions, providing a more comprehensive view than the Nernst equation, which addresses only a single ion's contribution to the membrane potential.
The Hofmeister series is a classification of ions based on their effects on the solubility and stability of proteins and other biomolecules in solution. It is named after the German chemist Franz Hofmeister, who conducted studies in the late 19th century that revealed how different ions affect protein behavior. The series is primarily concerned with the ability of ions to stabilize or destabilize protein structures and other colloidal systems in aqueous solutions.
Isotopomers are molecules that differ only in the isotopic composition of their atoms. They share the same molecular formula and structural arrangement, but at least one atom in the molecule has a different isotope.
Liquid junction potential is an electrochemical phenomenon that occurs at the interface between two different electrolyte solutions when they are in contact with each other. It arises due to differences in the mobility and concentration of ions in the two solutions. When two electrolyte solutions meet, ion concentration and mobility differences lead to the development of a potential difference. For example, if one solution has a higher concentration of a certain ion compared to the other, the movement of that ion can create a difference in electrical charge across the boundary.
A mixed-valence complex refers to a type of coordination complex in which a central metal ion exhibits multiple oxidation states or valences in a single molecular species. This means that within the complex, some of the metal ions are in one oxidation state while others are in a different oxidation state. Mixed-valence complexes are commonly found in transition metal chemistry and are significant for their electronic properties and their roles in various chemical processes including electron transfer reactions.
Miroslav Žamboch is a Czech author known for his work in the field of science fiction, fantasy, and action literature. He gained popularity for his engaging storytelling and character development. Žamboch has written a number of novels and short stories, often featuring elements of adventure, combat, and complex moral themes. In addition to his novels, he has also contributed to the Czech fantasy community through various anthologies and collaborations. His works are appreciated for their fast-paced narratives and dynamic plots.
A mixture is a combination of two or more substances that are not chemically bonded to each other. The components of a mixture retain their individual properties and can usually be separated by physical means. Mixtures can be classified into two main categories: 1. **Homogeneous Mixtures**: These have a uniform composition throughout. The individual components are not easily distinguishable. Examples include solutions like saltwater or air. 2. **Heterogeneous Mixtures**: These consist of visibly different substances or phases.
Molar conductivity, also known as molar conductance, is a measure of how well a particular solute conducts electricity when dissolved in a solvent, typically water. It is defined as the conductance of a solution divided by the number of moles of solute per liter of solution.
Molar refractivity is a physical property of a substance that relates to how light interacts with the material at the molecular level. It is defined as the measure of how much the speed of light is reduced within a substance compared to its speed in a vacuum, and it incorporates both the volume and the polarizability of the molecules in that substance.

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