Egbert Brieskorn (1939-2021) was a German mathematician renowned for his contributions to topology and singularity theory. He is particularly well-known for his work on braid groups, knot theory, and complex algebraic surfaces. One of his significant contributions involved the study of certain types of singularities, which has implications in various fields, including algebraic geometry and mathematical physics.
Engineering concepts encompass the fundamental principles, approaches, and methods that guide the practice of engineering across various disciplines. These concepts serve as the foundation for designing, analyzing, and optimizing systems, structures, and processes. Here are some key engineering concepts: 1. **Systems Thinking**: Understanding how individual components interact within a larger system. This includes recognizing inputs, outputs, feedback loops, and the overall behavior of the system.
An Extended Finite State Machine (EFSM) is a computational model that extends the capabilities of a traditional finite state machine (FSM). While a traditional FSM consists of a finite number of states and transitions between those states based on input symbols, an EFSM incorporates additional features that provide greater expressive power.
External combustion engines (ECEs) are a type of heat engine in which the combustion of fuel occurs externally to the engine itself. Unlike internal combustion engines, where fuel is burned within the engine cylinder, external combustion engines generate heat through a separate combustion process that heats a working fluid (such as water or air) that then drives the engine's mechanical motion.
Fail-safes in nanotechnology refer to mechanisms or strategies designed to prevent or mitigate potential risks associated with the use of nanomaterials or nanodevices. Due to the unique properties of nanomaterials, such as their small size, high reactivity, and the difficulty in predicting their behavior in biological and environmental systems, fail-safes are crucial for ensuring safety and preventing unintended consequences.
Godwin's Law is an internet adage formulated by Mike Godwin in 1990. It states that as an online discussion grows longer, the probability of a comparison involving Nazis or Hitler approaches one. Essentially, it suggests that in any extended debate, especially in political or ideological contexts, someone will eventually make a reference to Adolf Hitler or the Nazis. Godwin initially proposed the law to encourage more civil discourse and to highlight the diminishing quality of arguments when they devolve into such extreme comparisons.
In the context of web navigation and content layout, "heading" refers to the titles or labels that define the structure and organization of content on a webpage. Headings are used to separate sections of content and provide a clear hierarchy, making it easier for users to navigate and understand the material. There are different levels of headings, typically indicated by HTML tags: 1. **H1**: The main title of the page or section.
Hélène Bouchiat is a French physicist known for her work in experimental condensed matter physics and her contributions to the study of magnetic and electronic properties of materials. She has been involved in various research projects, particularly those related to nanoscale materials and quantum phenomena. Bouchiat is also recognized for her efforts in promoting science education and accessibility, particularly for young women in the field of physics.
The Itakura–Saito distance is a measure used primarily in the context of signal processing and speech recognition to quantify the difference between two probability density functions (PDFs) or spectrograms. It is particularly useful for analyzing audio signals, as it provides a way to measure the distortion between two signals in a way that is more consistent with human perception than some other distance measures.
Hungarian biophysicists refer to scientists from Hungary who specialize in biophysics, which is an interdisciplinary field combining biology and physics. Biophysicists study biological phenomena using the principles and methods of physics, often focusing on the molecular and cellular levels to understand the physical mechanisms that underlie biological processes. Hungary has a rich history in the sciences, including notable contributions to biophysics.
Idiopathic short stature (ISS) refers to a condition in which a child has a height significantly below the average for their age and sex, but no identifiable medical cause can be determined. In other words, despite extensive evaluations, including growth hormone levels, genetic tests, and assessments for chronic illnesses, a reason for the short stature cannot be found.
The Merten M. Hasse Prize is an award given for outstanding contributions to the field of number theory. Named after the mathematician Merten M. Hasse, the prize typically recognizes work in areas related to algebraic number theory, transcendental number theory, and related fields. The prize is often associated with a particular institution or society, such as the American Mathematical Society (AMS) or similar organizations, although specific details can vary.
The Information-Action Ratio (IAR) is a concept used to evaluate the efficiency of information in prompting action or decision-making. It highlights the balance between the amount of information acquired and the actions taken as a result of that information. The ratio can be expressed as: \[ \text{IAR} = \frac{\text{Information}}{\text{Action}} \] Where: - **Information** refers to the relevant data or insights that inform a decision or action.
Firefox add-ons are extensions or enhancements that allow users to customize and extend the functionality of the Mozilla Firefox web browser. These add-ons can enhance usability, improve security, block ads, manage passwords, change the appearance of the browser, or integrate third-party services and tools. There are several types of Firefox add-ons: 1. **Extensions**: These are the most common type of add-ons that add specific features or functionalities to the browser.
Iridescence is a phenomenon in which the color of a surface changes when viewed from different angles. This effect occurs due to the interference of light waves reflected from multiple layers of a material, such as the surface of soap bubbles, peacock feathers, or certain types of opal and abalone shells. The varying thickness of these layers causes different wavelengths of light to be reflected more strongly at particular angles, creating a shifting spectrum of colors.
Jaakko Hintikka (1929-2015) was a prominent Finnish philosopher, logician, and epistemologist known for his contributions to the fields of logic, the philosophy of language, and the theory of knowledge. He is particularly recognized for his work in epistemic logic, which explores the implications of knowledge and belief in formal systems. Hintikka developed the concept of "possible world semantics," which has had a significant influence on modal logic and the philosophy of language.
Jakob Philipp Kulik is not a widely recognized figure in popular culture or prominent historical events, based on the information available up to October 2023. It is possible that he could be a lesser-known individual, a character, or a name that has gained significance in a specific niche or recent context after my last update.
"Lars and the Real Girl" is a 2007 romantic comedy-drama film directed by Craig Gillespie and written by Nancy Oliver. The film stars Ryan Gosling as Lars Lindstrom, a socially awkward man living in a small town in Wisconsin. Lars is shy and struggles with interpersonal relationships but finds comfort in an unusual companion: a life-sized doll named Bianca, whom he treats as a real person.

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