Carpus of Antioch was a Christian martyr and saint who is commemorated in the Christian tradition, particularly within the Eastern Orthodox and Roman Catholic Churches. He is often recognized as a martyr who suffered for his faith during the early years of Christianity, around the 2nd or 3rd century. Carpus is generally associated with the city of Antioch, an important early center of Christianity. His life and martyrdom are often linked to broader stories of Christian persecution during that period.
Metrodorus, often referred to as Metrodorus of Scepsis, was a notable ancient grammarian and scholar who lived around the 2nd century BCE. He is recognized primarily for his works related to language, grammar, and the interpretation of texts, particularly in the context of ancient Greek literature. Although not as widely known as some other figures in classical scholarship, his contributions are significant in understanding the development of grammar and philology during his time.
Philolaus was a Greek philosopher from the Pythagorean school, active around the 5th century BCE. He is best known for his work on cosmology and philosophy, particularly in relation to mathematics and music. Philolaus is notable for his belief that the Earth is not the center of the universe, an idea that predates and anticipates later heliocentric models.
Gumblar is a type of web-based malware that primarily targets websites running on content management systems (CMS) like WordPress, Joomla, and others. It is named after the Gumblar.com domain, which was used by attackers to distribute the malware. The malware typically spreads through compromised websites, often by exploiting security vulnerabilities, and it can inject malicious scripts into the pages of infected sites.
The term "Philon" could refer to several different things depending on the context. Here are a few possibilities: 1. **Philo of Alexandria**: A Hellenistic Jewish philosopher who lived in Alexandria in the first century CE. He is known for blending Greek philosophy, particularly Stoicism and Platonism, with Jewish religious thought. 2. **Philon (spelling variation)**: This could refer to a name or a specific brand, product, or organization.
Antiphon of Athens (c. 480 – c. 411 BC) was a pre-Socratic philosopher and a Sophist, known for his contributions to philosophy and rhetoric, especially in the realm of social and political thought. He is often considered one of the early figures in the development of political theory and moral philosophy.
The Seikilos Epitaph is an ancient Greek inscription that is considered one of the oldest known complete musical compositions. It dates back to around the 1st century CE and was discovered on a tombstone in modern-day Turkey. The epitaph is notable for its combination of a poetic text and musical notation, which serves as both a memorial and a reflection on the transient nature of life. The inscription includes lyrics that express themes of love, life, and the inevitability of death.
Joachim Sauer is a German chemist, known primarily for his work in the field of theoretical chemistry and catalysis. He is also notable for being the husband of Angela Merkel, the former Chancellor of Germany. Sauer has had a distinguished academic career, serving as a professor and researcher in various institutions. His contributions to science, particularly in the study of chemical processes and reactions, have been recognized within the scientific community.
The Petersberg Climate Dialogue is an informal diplomatic meeting aimed at fostering international collaboration on climate change issues. It was initiated by Germany in 2010 and typically involves ministers from various countries, particularly those involved in the United Nations Framework Convention on Climate Change (UNFCCC) negotiations. The dialogue provides a platform for participants to discuss key climate policy issues, share best practices, and coordinate actions in the lead-up to major international climate conferences, such as the annual Conference of the Parties (COP).
"Wir schaffen das," which translates to "We can do it" or "We will manage it," is a phrase famously associated with German Chancellor Angela Merkel. She used it in 2015 to express confidence in Germany's ability to handle the influx of refugees and migrants during the European migrant crisis. The phrase became emblematic of Germany's approach to immigration and refugee policy at the time, highlighting both the challenges and the humanitarian commitments involved.
Perceived visual angle refers to the angular size of an object as it appears to an observer's eye, taking into account the object's size and distance from the observer. It is a psychological perception rather than a physical measurement, meaning it involves how we interpret and experience the size of an object. The perceived visual angle can be influenced by various factors, including: 1. **Distance**: As an object moves further away from the observer, its perceived size decreases, even though its actual size remains constant.
The Capital Recovery Factor (CRF) is a financial formula used to determine the annual amount that must be set aside to recover a capital investment over a specific period of time while accounting for interest or discounting rates. It is often applied in engineering economics, project management, and finance to evaluate the cost implications of capital assets and investments.
The Law of Sines is a fundamental relation in trigonometry that relates the angles and sides of a triangle. It states that the ratio of the length of a side of a triangle to the sine of the angle opposite that side is constant for all three sides of the triangle.
The parallactic angle is an important concept in astronomy and astrophysics related to the observation of celestial objects. It is defined as the angle between two lines of sight: one pointing towards an observer from a celestial object and the other pointing from the observer to the point in the sky directly above them, often referred to as the zenith or the meridian.
The phenomenon known as "orange snow" occurred in Siberia in 2007 when a thick layer of orange-hued snow blanketed the region. This unusual event was attributed to the presence of dust from a nearby desert, specifically the Taklamakan Desert in China, which was carried by winds and settled on the snow. The colored snow was a result of the dust containing iron oxide, which gave it the distinctive orange color.
Robert Brout was a Belgian physicist best known for his work in theoretical physics. He made significant contributions to the field of particle physics, particularly regarding the Higgs mechanism and the unification of fundamental forces. Brout is notably recognized for co-developing the Brout-Englert-Higgs mechanism along with François Englert and Peter Higgs. This mechanism explains how particles acquire mass through their interaction with the Higgs field, a vital aspect of the Standard Model of particle physics.
Russian anti-nuclear activists are individuals and groups in Russia who oppose the use of nuclear power and nuclear weapons, advocating for disarmament, environmental protection, and the cessation of nuclear energy development. Their activities can encompass a variety of initiatives, such as: 1. **Advocacy and Education**: Many activists work to raise public awareness about the potential dangers of nuclear energy and weapons, including accidents, radiation exposure, and long-term environmental impacts.
The Anti-WAAhnsinns Festival is a cultural event held in Germany, primarily focused on promoting anti-fascist, anti-racist, and progressive values through music, art, and community engagement. The festival typically features live performances from various artists, workshops, discussions, and other activities that aim to encourage critical thinking and solidarity among attendees.
British anti-nuclear activists are individuals or groups in the United Kingdom who oppose the development, possession, and use of nuclear weapons and nuclear power. Their activism is driven by a variety of concerns, including the potential for catastrophic accidents, the environmental impact of nuclear energy, issues of national security, and ethical considerations surrounding weapons of mass destruction. The anti-nuclear movement in the UK has a long history, particularly prominent during the Cold War when fears of a nuclear conflict were heightened.
The Blob refers to a large, anomalous mass of warm water that appeared in the Pacific Ocean, primarily near the North America coastline, during the early 2010s. This phenomenon is characterized by an unusually high sea surface temperature that deviates significantly from normal conditions. The Blob first gained attention around 2014, but similar warm water events have been observed at various times.

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