Relativity theorists are scientists, particularly physicists, who study and develop theories related to the concepts of relativity, which describe the behavior of objects in motion and the nature of space and time. The most notable theories in this domain are Albert Einstein's Special Relativity and General Relativity. 1. **Special Relativity (1905)**: This theory focuses on the physics of objects moving at constant speeds, particularly at speeds close to the speed of light.
Dejan Milošević could refer to multiple individuals since it is a common name in certain regions, particularly in countries like Serbia and Montenegro. However, without additional context, it's difficult to pinpoint a specific person. If you are referencing a particular Dejan Milošević, such as an athlete, public figure, or individual in a specific field (like politics, arts, etc.
Lewis Elton (1921–2023) was a prominent British educational psychologist, known for his work in the field of educational assessment and teaching methods. He made significant contributions to understanding how people learn and has been involved in various educational reforms. Elton was also an advocate for the application of educational research to improve teaching practices and learning outcomes. His work often emphasized the importance of evidence-based approaches in education.
"Mary Almond" doesn't refer to a widely recognized term, concept, or entity as of my last knowledge update in October 2021. It could potentially refer to a person, a fictional character, a brand, or something more specific in a niche context.
Maurice Wilkins was a New Zealand-born physicist and molecular biologist who is best known for his role in the discovery of the structure of DNA. He was a key figure in the early stages of DNA research and worked along with James Watson and Francis Crick, who are famously credited with proposing the double helix model of DNA. Wilkins studied physics at the University of New Zealand and later at the University of Cambridge, where he became interested in biological problems.
Peter Mansfield was a British physicist, best known for his pioneering work in the development of magnetic resonance imaging (MRI). He was born on January 9, 1933, and passed away on September 8, 2017. Mansfield's research in the 1970s contributed significantly to the practical application of MRI in medicine, allowing for non-invasive imaging of the human body.
Variation of Information (VI) is a measure of the distance between two probability distributions. It is particularly used in information theory and statistics to quantify the amount of information that one distribution shares with another. This concept can be useful in various contexts, including clustering, classification, and comparing the outputs of algorithms. The Variation of Information between two random variables (or distributions) \( X \) and \( Y \) is defined in terms of their entropy and mutual information.
Cross-entropy is a measure from the field of information theory that quantifies the difference between two probability distributions. It is commonly used in machine learning, particularly in classification problems, as a loss function to assess the performance of models, especially in the context of neural networks.
Scientific observation is the process of systematically watching, measuring, and recording phenomena in order to gather data and gain insights about the natural world. It is an essential component of the scientific method, which seeks to form hypotheses, conduct experiments, and draw conclusions based on empirical evidence. Key characteristics of scientific observation include: 1. **Objective**: Observations should be free from personal bias or subjective interpretation. Scientists strive to remain neutral and only report what can be measured or seen.
William Hyde Wollaston (1766–1828) was a prominent English chemist and physicist known for his significant contributions to the fields of chemistry and crystallography. He is particularly recognized for a few key achievements: 1. **Discovery of Platinum**: Wollaston is credited with the discovery of the element palladium in 1803, which he identified while studying platinum ores. He is also known for developing techniques for refining platinum.
Approximate Entropy (ApEn) is a statistical measure used to quantify the complexity or irregularity of a time series data set. It was introduced by Steve Pincus in the early 1990s. The measure assesses the degree of predictability of a time series by analyzing its patterns and fluctuations.
Economy-wide material flow accounts (EW-MFA) are a systematic framework for measuring and analyzing the physical flows of materials within an economy over a specific period. These accounts track the extraction, import, export, and disposal of materials, providing insights into how resources are used and managed in an economy. The key components of EW-MFA include: 1. **Material Inputs**: This includes all raw materials that enter the economy from nature (e.g.
Landauer's principle is a fundamental concept in information theory and thermodynamics, formulated by physicist Rolf Landauer in the 1960s. It establishes a relationship between information processing and thermodynamic entropy, particularly focusing on the energy cost of erasing information.
The Principle of Maximum Caliber, also known as the Maximum Caliber Principle or Caliber Principle, is a conceptual framework used in statistical mechanics and information theory to derive probability distributions that maximize the uncertainty or "caliber" of a system subject to certain constraints. It is particularly useful for systems that are far from equilibrium. The principle is related to the more commonly known Maximum Entropy Principle, which is used to derive probability distributions that maximize entropy subject to given constraints.
Oxygen-17 (³¹₆O) is a stable isotope of oxygen. It contains 8 neutrons and 9 protons in its nucleus, giving it a mass number of 17. In naturally occurring oxygen, about 0.037% is this isotope, making it relatively rare compared to the more common isotopes, Oxygen-16 (the most abundant) and Oxygen-18.
Land change modeling (LCM) is a set of techniques and methods used to simulate and predict changes in land use and land cover over time. These models assess how different factors—such as human activities, environmental conditions, policies, and socio-economic trends—impact land use changes in specific regions or landscapes. LCM is particularly important in understanding and managing ecological and environmental issues, urbanization, deforestation, agricultural expansion, and habitat fragmentation.
Simulated growth of plants refers to the use of computer models and simulations to mimic the biological processes and growth patterns of plants. This approach combines various scientific disciplines, including biology, ecology, geography, and computer science, to create digital representations of plants and their growth under different environmental conditions. ### Applications of Simulated Plant Growth: 1. **Research and Education**: Simulations can help researchers understand plant biology and growth dynamics without the logistics and time required for real-world experiments.
EcoProIT is an initiative or program likely focused on promoting sustainable practices and eco-friendly technologies within the IT industry. Although specific details may vary, such programs often involve efforts to reduce the environmental impact of information technology through efficient resource use, reducing energy consumption, promoting recycling, and encouraging sustainable innovation in hardware and software development.
Background radiation equivalent time (BRET) is a concept used in health physics to express the dose of ionizing radiation that an individual receives from natural background sources over a specific period of time. It helps to quantify and compare the radiation exposure from various sources to allow for a better understanding of overall risk. The term is often used to communicate radiation exposure in a more relatable way.

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