Helene Stähelin is a Swiss botanist renowned for her research in plant physiology and biochemistry. She has made significant contributions to the study of plant signals and responses to environmental stresses. Her work involves exploring specific pathways and mechanisms that plants use to adapt to their surroundings, focusing on plant hormones and secondary metabolites.
Hermeus is an aerospace company focused on developing hypersonic travel technology. Founded in 2018, the company aims to create faster and more efficient methods of air travel by designing aircraft capable of flying at hypersonic speeds, which are generally defined as speeds greater than Mach 5 (five times the speed of sound). Hermeus's approach involves advanced propulsion systems, including ramjet and turbojet engines, to achieve these high speeds.
Heugel is a French music publishing company that has a long history in the publishing of classical music and educational materials. Founded in the 19th century, Heugel has been associated with a variety of composers and has published a wide range of musical works, including orchestral, chamber, and vocal music. The publisher is known for its high-quality editions that cater to musicians, educators, and performers.
The hospitality industry is a broad category that encompasses businesses and organizations that provide services related to lodging, meals, and other customer services. It primarily focuses on customer satisfaction and creating a welcoming and enjoyable experience for guests. The hospitality industry can be divided into several key sectors, including: 1. **Accommodations**: This includes hotels, motels, resorts, hostels, bed and breakfasts, and vacation rentals. These establishments provide lodging and can range from luxury to budget options.
"House of Stairs" is a novel by William Sleator, published in 1974. The story follows five teenagers who find themselves trapped in a mysterious, labyrinthine building filled with stairs, which they must navigate while facing psychological and physical challenges. The narrative explores themes of survival, the nature of power, and the dynamics of relationships among the characters as they try to figure out their situation and the purpose of the house.
Howard Wilson Emmons (1913–2004) was an influential American physicist and a key figure in the field of plasma physics and nuclear fusion research. He contributed significantly to the development of concepts and devices related to controlled nuclear fusion, including magnetic confinement methods. Emmons was also known for his work in plasma diagnostics and his leadership roles in various research programs.
The term "Hungarian units of measurement" typically refers to traditional units that were historically used in Hungary before the country adopted the metric system. Hungary officially transitioned to the metric system in the 19th century, but some historical units included: 1. **Föld** - Land measurement, often used to measure agricultural land, equivalent to approximately 0.57 acres.
Hypothetical chemical compounds are substances that have been proposed or theorized based on theoretical models, predictions, or calculations but have not yet been synthesized or confirmed in practical experiments. These compounds are often discussed in the context of: 1. **Theoretical Chemistry**: Researchers may use computational chemistry and quantum mechanics to predict the properties and stability of compounds that have not been created in laboratories.
The IBM 8750 Business Communication System, also known as IBM's Integrated Office System (IOS) or IBM 8750, was a type of office automation system introduced by IBM in the late 1980s. The system was designed to enhance business communication and productivity by integrating various functions such as word processing, messaging, and document management.
As of my last knowledge update in October 2021, Igor Ternov does not appear to be a widely recognized figure in popular culture, science, or current events. It's possible that he could be a private individual, a name in a niche field, or may have gained prominence after my last update.
Incremental validity refers to the extent to which a new assessment tool, measure, or predictor contributes additional information or predictive power over and above what is already provided by existing measures or predictors. In other words, it evaluates whether the new measure provides significant value in predicting an outcome or behavior, after accounting for other relevant factors.
Indentation style refers to the convention used in coding to indent lines of code in a structured and consistent manner. Proper indentation improves code readability and helps to convey the logical structure of the code. Different programming languages and coding standards may use various styles of indentation, but the primary purpose remains the same: to visually organize code to highlight its hierarchy and flow.
An Inductive Output Tube (IOT) is a type of vacuum tube that is primarily used in high-frequency applications, especially in the fields of television broadcasting and satellite communications. IOTs are designed to amplify radio frequency (RF) signals and are known for their high efficiency and ability to operate at microwave frequencies. Key characteristics of Inductive Output Tubes include: 1. **Construction**: IOTs typically have a cylindrical structure, with an electron gun that emits electrons towards a collector.
Initialization in programming refers to the process of assigning an initial value to a variable or object at the point when it is created. It is a critical step in programming, as it ensures that the variable has a defined state before it is used in computations or operations. Here's a breakdown of initialization: 1. **Purpose**: Initialization is important because uninitialized variables often contain garbage values (random data left in memory), which can lead to unpredictable behavior or errors in a program.
Innovations in Theoretical Computer Science (TCS) encompass a range of advancements that push the boundaries of our understanding of computation, algorithms, complexity theory, and related fields. TCS serves as a foundational pillar for practical applications in computer science, engineering, and beyond.
The Institute for Affordable Transportation (IAT) is an organization focused on promoting affordable and sustainable transportation solutions. While specific details about the IAT may vary, organizations with similar names often work towards developing innovative technologies, advocating for policy changes, and providing resources aimed at improving transportation options for underserved communities or promoting environmentally friendly practices. The IAT might engage in research, community outreach, collaborations with governmental and non-governmental entities, and initiatives designed to improve transportation accessibility and equity.
Interaction energy refers to the energy associated with the interactions between two or more particles, atoms, or molecules. This concept is fundamental in various fields of physics and chemistry, as it helps describe how particles affect each other through forces. Interaction energy can manifest in different forms, depending on the type of interactions involved, such as: 1. **Gravitational Interaction Energy**: The potential energy due to the gravitational attraction between two masses.
Interpass temperature refers to the temperature of a welded joint or the material being welded between successive welding passes. It is a critical factor in welding processes, particularly in multi-pass and heat-sensitive welding applications. Maintaining an appropriate interpass temperature is essential for several reasons: 1. **Material Properties**: The mechanical properties of metals can change with temperature. If the interpass temperature is too low, it can lead to issues such as cracking or incomplete fusion.
Intervenor compensation is a legal concept that allows individuals or entities that intervene in regulatory proceedings, particularly in public utility and environmental matters, to be compensated for their reasonable expenses. This is often relevant in cases where a group or individual participates in a proceeding to represent public interests, such as consumer protection or environmental conservation.
"Rank up" typically refers to the process of advancing to a higher level, position, or rank in various contexts, such as gaming, education, or professional environments. Here are a few specific interpretations: 1. **Gaming**: In video games, particularly in competitive or multiplayer settings, "ranking up" means to achieve a higher rank or tier based on performance in matches. Players often earn ranks based on their skill, wins, and overall performance.

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