Meades Ranch Triangulation Station is a historic geodetic control point located in the United States, specifically in Kansas. Established in the late 19th century, it served as a pivotal point for triangulation surveys, which were essential for creating accurate maps and determining geographical positioning. The station was part of a broader effort by the U.S. government to develop a national geodetic framework that would aid in mapping, navigation, and land surveying.
A measuring rod, often referred to as a measuring stick or rod, is a straight, rigid tool used to measure lengths or distances. Traditionally made from wood, metal, or fiberglass, measuring rods provide a tactile method for gauging measurements in various applications, such as construction, surveying, and woodworking.
The Accelerated Failure Time (AFT) model is a type of survival analysis model used to analyze time-to-event data. Unlike the more commonly used Cox proportional hazards model, which focuses on the hazard function (the instantaneous risk of an event occurring), the AFT model directly models the time until an event occurs, often called the "failure time.
The Continuum Structure Function is commonly referenced in the context of quantum field theory, particularly in studies involving non-perturbative aspects of quantum chromodynamics (QCD), though the term can also apply broadly in other fields such as statistical mechanics and condensed matter physics. In quantum field theory, structure functions are used to describe the distribution of energy, momentum, or other physical quantities among the constituents of a system.
Personal transporters are compact, portable vehicles designed for individual use to facilitate personal mobility. They typically include devices that operate on electronic and often battery-powered systems. Common examples of personal transporters include: 1. **Electric scooters**: These are two-wheeled vehicles powered by electric motors, allowing users to easily navigate urban environments. 2. **Segways and hoverboards**: Segways use a self-balancing mechanism, whereas hoverboards are platform-style devices that also operate through balancing techniques.
The effects of cars can be examined from various perspectives, including environmental, economic, social, and health-related aspects. Here are some key effects of cars: ### Environmental Effects 1. **Air Pollution**: Cars emit pollutants such as carbon monoxide (CO), nitrogen oxides (NOx), and volatile organic compounds (VOCs), contributing to poor air quality and respiratory issues.
The ergodic hypothesis is a concept from statistical mechanics and dynamical systems that relates to the long-term behavior of a dynamical system. It asserts that, under certain conditions, the time average of a physical quantity is equal to the ensemble average (or spatial average) over the state space of the system.
The Innovative Clean Transit (ICT) rule is a regulatory measure implemented by the California Air Resources Board (CARB). It aims to facilitate the transition of public transit agencies to zero-emission bus fleets. The rule was finalized in 2018 and supports California's broader goals of reducing greenhouse gas emissions and improving air quality.
Oskar Sandberg could refer to different individuals, but without specific context, it's challenging to provide an accurate answer. There isn't a widely known figure by that name in popular culture or history up to October 2023.
Plan Bay Area is a long-range regional planning effort that aims to accommodate growth in the San Francisco Bay Area while promoting sustainability, equity, and economic development. Developed by the Association of Bay Area Governments (ABAG) and the Metropolitan Transportation Commission (MTC), Plan Bay Area includes strategies for land use, transportation, and housing over a 30-year horizon.
A walking audit, also known as a walkability audit, is an assessment tool used to evaluate the pedestrian-friendliness of a particular area or neighborhood. It involves physically walking through a designated area and observing various factors that impact the experience of pedestrians. The goal of a walking audit is to identify both strengths and weaknesses in the environment for walkers, which can then inform urban planning, community development, and policy decisions.
Swedish plasma physicists refer to researchers and scientists in Sweden who specialize in the study of plasma physics, which is the branch of physics that deals with plasmas—ionized gases composed of charged particles, including ions and electrons. Plasma is often referred to as the fourth state of matter, alongside solid, liquid, and gas.
Bodil Jönsson is a Swedish physicist, author, and speaker, well-known for her work in the fields of time, aging, and the philosophy of time. She has gained recognition for her ability to communicate complex scientific concepts to a general audience and has written several influential books, including "Time is a Created Thing" (original title: "Tid är något vi gör") which explores the nature of time and its impact on our lives.
Torbjörn Sjöstrand is a Swedish individual known primarily for his work in mathematics and related fields. However, there may be limited publicly available information about him, as he is not a widely recognized figure in popular culture or general public discourse.
The divisor function, often denoted as \( d(n) \) or \( \sigma_k(n) \), is a function in number theory that counts or sums the divisors of a positive integer \( n \). 1. **Count of Divisors**: The most common version is \( d(n) \), which counts the total number of positive divisors of \( n \).
Per-Olov Löwdin was a prominent Swedish theoretical physicist and chemist, known for his contributions to quantum chemistry and molecular physics. Born on February 15, 1916, and passing on March 3, 2000, Löwdin is celebrated for his work in the development of mathematical methods to describe atomic and molecular interactions.
Jürg Peter Buser is a Swiss physicist known for his research in the field of physics, particularly in areas related to optics and photonics. However, there may be limited publicly available information about him.
A **glide plane** is a concept primarily used in the field of crystallography and materials science, particularly in the study of crystallographic defects such as dislocations. In simple terms, a glide plane is a specific plane within a crystal lattice along which dislocations can move. In the context of slip systems, glide planes play a crucial role in plastic deformation of materials.
Paul Gruner could refer to various individuals depending on the context, but without specific details, it's difficult to pinpoint exactly who you're referring to.
A Bent function is a specific type of Boolean function that has maximum possible distance from all affine functions, making it highly nonlinear. In the context of cryptography and coding theory, Bent functions are particularly valued for their strong security properties and resistance to linear approximations, which makes them suitable for use in cryptographic applications.

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