Tribochromism is a phenomenon where a material changes color in response to mechanical stress or friction. This can occur due to various mechanisms, such as changes in molecular structure, the alignment of chromophoric groups, or alterations in the electronic properties of the material when it is subjected to pressure or movement.
Breathometer is a portable device designed to measure blood alcohol content (BAC) by analyzing a person's breath. Originally launched as a smartphone accessory, it allowed users to check their alcohol levels by blowing into the device, which then communicated with a mobile app to provide readings and feedback. The concept was aimed at promoting responsible drinking by helping individuals make informed decisions about their alcohol consumption. However, the company faced legal and regulatory challenges, and there were concerns regarding the accuracy and reliability of the device.
A helium flash is a crucial astrophysical event that occurs in the later stages of a star's life, particularly in low- to intermediate-mass stars (like those in the range of about 0.8 to 8 solar masses). This phenomenon happens when the core of a red giant, primarily composed of helium, becomes sufficiently hot and dense to ignite helium fusion after a period of hydrogen burning in the star's earlier life stages.
The term "instability strip" can refer to several different concepts depending on the context, but it is most commonly used in meteorology and atmospheric science. In this context, an instability strip is a region in a diagram that represents the stability properties of the atmosphere, particularly with regard to convection. In meteorology, the instability strip typically refers to a band on a thermodynamic diagram, such as a skew-T log-P diagram, where certain conditions indicate that the air is unstable.
Ignacas Stasys Uždavinys is a Lithuanian philosopher, writer, and scholar known for his work in the fields of philosophy, comparative religion, and mysticism. He has contributed significantly to the study of various philosophical traditions and has engaged with topics such as Eastern philosophy, the nature of consciousness, and the interplay between spirituality and modernity. His writings often explore the connections between different cultural and philosophical perspectives, making profound insights accessible to a broader audience.
Enriqueta González Baz appears to be a lesser-known figure, and there may not be widely available information on her in popular sources. If she is a prominent person in a specific field, such as politics, academia, or arts, it would be helpful to have more context to provide accurate information.
New Zealand statisticians refers to professionals who specialize in the collection, analysis, interpretation, and presentation of quantitative data in New Zealand. They work in various sectors, including government, academia, healthcare, business, and research institutions. The primary organization representing statisticians in New Zealand is the New Zealand Statistical Association (NZSA), which promotes the discipline of statistics and provides resources and support for statisticians in the country.
A meme is a concept, behavior, style, or cultural practice that spreads from person to person within a culture. In the context of the internet and social media, memes often take the form of images, videos, text, or other media that are humorous, satirical, or relatable. They typically feature a recognizable format that can be easily modified, allowing users to create variations that reflect their own experiences or sentiments. Internet memes often go viral, spreading rapidly across social media platforms and forums.
Reality is a complex and multifaceted concept that has been explored by various disciplines including philosophy, physics, psychology, and even art. At its core, reality can be understood as the state of things as they actually exist, independent of perception or belief. Here are several perspectives on reality: 1. **Philosophical Perspective**: Philosophers debate the nature of reality, questioning what is real versus what is perceived.
Victim blaming is the phenomenon where the victim of a crime, mistake, or any wrongdoing is held wholly or partially responsible for the harm that befell them. This can occur in various contexts, but it is most commonly discussed in relation to crimes such as sexual assault, domestic violence, and harassment.
The term "Author function" can refer to several concepts depending on the context. Here are a few interpretations: 1. **Literary Studies**: In literary theory, particularly in the context of poststructuralism, the "author function" is a concept introduced by the French philosopher Michel Foucault. He examined how the author's identity and intentions influence the interpretation and value of a text.
Velocity overshoot refers to a phenomenon in control systems and signal processing where a system exceeds its desired velocity or speed during the response to a given input or disturbance. This typically occurs when a system is designed to follow a setpoint or trajectory, and the feedback control mechanism causes it to momentarily exceed the intended speed before settling back to the desired value.
Nepotism is the practice of favoring relatives or close friends when it comes to positions of power, employment, or other opportunities, often disregarding merit or qualifications. This can occur in various contexts, including politics, business, and entertainment, and can result in perceptions of unfairness, reduced morale among employees, and potential abuses of power. Nepotism can undermine organizational integrity and hinder diversity, as it often excludes qualified individuals who do not have personal connections within the institution.
The **Alpha Crucis** is a research vessel owned and operated by the Australian Antarctic Division (AAD). It is primarily used for scientific research and support operations in Australia’s Antarctic and sub-Antarctic waters. The vessel is equipped to conduct various types of marine research, including oceanographic studies, environmental monitoring, and biodiversity assessments. The Alpha Crucis is often involved in logistical support for scientific expeditions, which may include transporting researchers, equipment, and supplies to remote locations.
Noise can refer to several concepts depending on the context in which it is used. Here are a few common interpretations: 1. **General Definition**: Noise generally refers to unwanted or disruptive sounds. It can be anything from background chatter, traffic sounds, or construction noise that interferes with effective communication or concentration. 2. **Scientific and Technical Context**: In fields like physics and engineering, noise refers to random fluctuations or disturbances in a signal that can distort the intended information.
Metallic hydrogen is a phase of hydrogen that is theorized to occur under extremely high pressures. In this state, hydrogen molecules (H₂) are thought to dissociate into individual hydrogen atoms, which can then exhibit properties similar to metals, including electrical conductivity. This phenomenon is predicted to occur because at high pressures, the electron orbitals of hydrogen atoms overlap, allowing them to behave like a sea of delocalized electrons, similar to metals.
A vapor cone, also known as shock collar or vapor cloud, is a phenomenon that occurs when an aircraft, typically traveling at supersonic speeds (faster than the speed of sound), displaces air in such a way that moisture in the air condenses, creating a visible cloud. This effect is primarily seen around the aircraft's wings and fuselage due to the rapid changes in pressure and temperature as the aircraft breaks the sound barrier.
Chinese wax, often referred to as "Chinese wax scale," is a natural product derived from the secretions of certain scale insects, specifically those belonging to the genus **Ceroplastes**. The wax is produced by these insects as a protective covering for themselves, and it appears as a white or yellowish substance.
"Gantz: G" is a manga series that serves as a spinoff of the original "Gantz" series created by Hiroya Oku. While the original "Gantz" follows a group of people who are resurrected after dying and forced to participate in deadly missions against aliens using technology provided by a mysterious black sphere known as Gantz, "Gantz: G" introduces new characters and settings while maintaining some of the core themes of action, survival, and moral dilemmas.
A chain pump is a type of mechanical device used for lifting water or other liquids from a lower elevation to a higher elevation. It consists of a continuous chain that has a series of buckets or scoops attached to it. As the chain moves, the buckets scoop up water from a source, such as a well or a river, and transport it upward to a designated point where it is discharged.

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 5. . 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.
  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