Peter Pagin is a philosopher known for his work in the areas of logic, philosophy of language, and the philosophy of mathematics. He has contributed to discussions on topics such as the nature of meaning, logical consequence, and the foundations of mathematics. His work often explores formal systems and how they relate to philosophical questions about truth and representation. Pagin has published numerous papers and articles that delve into these subjects, making significant contributions to contemporary philosophical discourse.
Pieranna Garavaso is an academic known for her work in the field of philosophy, particularly in areas such as logic, mathematics, and the philosophy of language. She has contributed to discussions on various topics, including the foundations of mathematics, set theory, and philosophical issues related to mathematical practice and notation. Garavaso has been involved in various scholarly publications and has had an impact on her fields of study through teaching and research.
R. M. Hare, or Richard Mervyn Hare, was a prominent British philosopher known for his work in moral philosophy, particularly in the fields of ethical theory and metaethics. Born in 1919 and passing in 2002, he was well-regarded for his contributions to utilitarianism, and he emphasized the importance of moral language and the role of statements in ethical reasoning.
Ralph Barton Perry (1876–1957) was an American philosopher known for his work in the fields of ethics and philosophy of mind. He was associated with the "Boston School" of philosophy and had a significant influence on American thought. Perry was known for his pragmatism, a philosophical tradition that emphasizes practicality and the application of ideas in real-world situations.
As of my last training cut-off in October 2023, comprehensive and up-to-date rankings of the least polluted cities by particulate matter (PM2.5) concentration can typically be found in annual reports from organizations like the World Health Organization (WHO) or the IQAir World Air Quality Report. These reports usually rank cities based on average annual PM2.5 levels.
Height typically refers to the measurement of an object or individual from base to top, or the distance from the ground to the highest point. In a biological context, height often pertains to humans or animals and is measured from the feet to the top of the head when standing upright. Height can be expressed in various units, such as centimeters, meters, feet, or inches. In other contexts, such as geography, height might refer to the elevation of a location above sea level or another reference point.
Rita Zemach is a prominent figure in the field of linguistics, known particularly for her work on syntax and semantics. She has contributed to the understanding of various linguistic phenomena and theories.
A circular mil is a unit of area used primarily in the electrical industry to describe the cross-sectional area of a conductor, such as a wire. It is defined as the area of a circle with a diameter of one mil (one thousandth of an inch). To calculate the area in circular mils, the formula is: \[ \text{Area (circular mils)} = \frac{D^2}{0.
The term "water resistant" refers to a product's ability to resist the penetration of water to some degree, but it does not imply that the product is completely waterproof. The water resistance mark is typically used in relation to watches, electronics, clothing, and other items that may be exposed to moisture.
The term "cosmological decade" isn't an established scientific term, but it can refer to a period in cosmological research characterized by significant advancements or discoveries in our understanding of the universe. For instance, one might describe the period from the 2000s to the early 2010s as a cosmological decade due to breakthroughs in dark energy studies, the detection of exoplanets, and the further development of the Lambda Cold Dark Matter (ΛCDM) model of cosmology.
The unit of magnetic flux is the weber (Wb) in the International System of Units (SI). One weber is defined as the amount of magnetic flux that, when linking a circuit of one turn, produces an electromotive force of one volt when the flux is reduced to zero at a uniform rate in one second.
The unit of magnetic induction, also known as the magnetic flux density, is the tesla (symbol: T) in the International System of Units (SI). One tesla is defined as one weber per square meter (1 T = 1 Wb/m²). Another commonly used unit, especially in electromagnetic contexts, is the gauss (G), where 1 tesla is equal to 10,000 gauss (1 T = 10,000 G).
"Groatland" is not a widely recognized term or name in common usage. It may refer to a specific location, fictional setting, or concept depending on the context. For instance, it could be a name for a business, community, or creative work. Without further context, it’s difficult to provide a precise description.
The Baumé scale is a density-based scale used to measure the specific gravity of liquids, particularly in industrial and chemical applications. There are two versions of the Baumé scale, one for fluids lighter than water (typically used for liquids like alcohol) and one for fluids heavier than water (typically used for liquids such as acids and syrup). 1. **For liquids lighter than water:** A higher Baumé reading indicates a lower specific gravity.
A horsepower-hour (hph) is a unit of energy that represents the amount of work done by a horse using one horsepower over one hour. Horsepower is a unit of power that typically denotes the rate at which work is done. Specifically, one horsepower is commonly defined as equivalent to 550 foot-pounds of work done per second, or approximately 746 watts.
The miner's inch is a unit of measurement used primarily in the context of water flow and irrigation, particularly in the Western United States. It represents the flow of water through an opening or a pipeline, specifically how much water flows from a mine or irrigation ditch given a certain cross-sectional area. The term is derived from historical mining practices where water was crucial for certain mining operations.
IOPS, or Input/Output Operations Per Second, is a performance measurement used to evaluate the speed at which a storage device, such as a hard disk drive (HDD), solid-state drive (SSD), or storage area network (SAN), can read and write data. IOPS indicates how many read and write operations a storage device can handle in one second. This metric is especially important in environments where high-speed data access is required, such as databases, virtualization, and cloud computing.
"Per annum" is a Latin term that means "per year." It is often used in financial and economic contexts to describe an annual rate, such as interest rates, salaries, or other yearly calculations. For example, if someone earns a salary of $50,000 per annum, it means they earn that amount each year. Similarly, if a loan has an interest rate of 5% per annum, it means that 5% interest will be charged on the principal amount each year.
"Day's Journey" typically refers to "Long Day's Journey Into Night," a play written by American playwright Eugene O'Neill. It was written in 1941 but was not published or performed until after O'Neill's death in 1956. The play is a semi-autobiographical story that depicts the struggles of the Tyrone family, which is based on O'Neill's own family experiences.

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