MH and xmh are systems for managing electronic mail (email). They were designed primarily for users and programmers who need to handle email efficiently. ### MH (Mail Handler) - **What it is**: MH is a powerful email processing system that allows users to manage their email messages in a more programmable and scriptable way. It organizes email messages into a directory structure where each message is stored as a separate file.
A "milliwatt test" commonly refers to a type of test or measurement conducted to evaluate the performance or functionality of electrical devices, particularly in the context of telecommunications or audio equipment. It typically involves measuring the output power of a device in milliwatts (mW), which is a unit of power equal to one-thousandth of a watt.
Milutin Milanković (1879–1958) was a Serbian mathematician, astronomer, and geophysicist, best known for his work in the fields of climate science and astronomy. He is particularly recognized for developing the Milankovitch cycle theory, which explains how variations in Earth’s orbital parameters—such as axial tilt, eccentricity, and precession—affect the Earth’s climate over geological time scales.
As of my last knowledge update in October 2023, there is no widely recognized public figure, concept, or term specifically known as "Miriam Burland." It is possible that Miriam Burland refers to a private individual or a lesser-known entity not covered extensively in public sources.
Mollie Orshansky was an American economist and statistician, best known for her work in the field of poverty measurement in the United States. She is particularly recognized for developing the Orshansky poverty thresholds in the 1960s, which provided a statistical basis for determining the poverty line. Orshansky's approach involved calculating income levels needed to meet basic food requirements and then adjusting them for family size and other factors.
"Naveen Garg" could refer to various individuals depending on the context, as it's a name that may belong to multiple people. It might refer to a professional, an academic, or someone notable in a specific field, but there isn't a prominent or widely recognized figure named Naveen Garg as of my last update in October 2023.
"Net.wars" is a science fiction novel written by the British author Mark F. D. H. "Mario" (M. F. D. H.) that was first published in 1995. The novel explores themes related to cyberspace, online interactions, and the impact of technology on society. It is notable for its prescient insights into the future of the Internet, virtual reality, and the implications of digital communication.
Nicolas Rashevsky (1899–1972) was a prominent mathematical biologist known for his work in the field of biophysics and mathematical modeling in biology. He is often regarded as one of the founders of modern mathematical biology and made significant contributions to understanding complex biological systems through mathematical frameworks. Rashevsky was involved in the application of differential equations and other mathematical methods to study biological processes, including population dynamics and neural networks.
Noise temperature is a concept used in radio frequency (RF) engineering and antenna theory to quantify the amount of thermal noise generated by an antenna or its surrounding environment. Specifically, it is an effective temperature that characterizes the noise power generated by the random motion of electrons in the antenna and the surrounding materials, which can affect signal reception and transmission.
Nonlinear modeling refers to the process of creating mathematical models in which the relationships between variables are not linear. In contrast to linear models, where changes in one variable result in proportional changes in another, nonlinear models can capture more complex relationships where changes in one variable may lead to disproportionate or varying changes in another.
Norway uses the metric system for units of measurement, which is consistent with most countries worldwide. Here are some common metric units used in Norway: 1. **Length**: - Meter (m) - Centimeter (cm) - Millimeter (mm) - Kilometer (km) 2. **Mass/Weight**: - Kilogram (kg) - Gram (g) - Tonne (t) 3.
An Optophone is a device designed to convert visual information into sound, allowing individuals who are blind or visually impaired to perceive their surroundings through auditory signals. The concept utilizes the principle of translating visual patterns into corresponding audio representations, enabling users to "listen" to their environment. Optophones can vary in complexity and functionality. Some models may use cameras and computer processing to analyze visual input and convert it into sounds or tones, while others might utilize simpler systems with basic sensors.
Oven temperatures refer to the heat settings used during cooking or baking in an oven. These temperatures are typically measured in degrees Fahrenheit (°F) or degrees Celsius (°C) and can vary significantly depending on the recipe and the desired outcome. Here’s a general breakdown of common oven temperature settings: 1. **Low temperatures**: - **200°F (93°C)**: Used for keeping food warm.
A Passenger Locator Form (PLF) is a document required by many countries for travelers entering their borders, particularly in response to health concerns such as the COVID-19 pandemic. The purpose of the form is to help track and manage the spread of infectious diseases by collecting information on travelers' contact details, travel history, and health status. Typically, a PLF includes the following information: 1. **Personal Information**: Full name, date of birth, nationality, and passport number.
A "bit" is the most basic unit of information in computing and digital communications. The term "bit" is short for "binary digit." A bit can have one of two possible values: 0 or 1. In binary notation, these bits are used to represent various forms of data, including numbers, text, images, and more. Bits are fundamental to the workings of computers and digital systems, as they underpin all digital data processing.
A qutrit is a quantum system that can exist in a superposition of three distinct states, as opposed to a qubit, which can exist in a superposition of two states. The term "qutrit" is derived from "quantum trit," where "trit" refers to a digit in base-3 numeral systems, similar to how "qubit" references a binary digit in base-2 systems.
A ribbon graph is a mathematical structure used primarily in the field of topology and combinatorial structures. It is a kind of graph where edges are represented as ribbons, which have a specified width. Ribbon graphs can be thought of as a generalization of planar graphs and provide a way to encode information about embeddings of graphs in surfaces.
The Riemann–Siegel formula is an important result in analytic number theory that provides an asymptotic expression for the nontrivial zeros of the Riemann zeta function, denoted as \( \zeta(s) \), in the critical strip where \( 0 < \Re(s) < 1 \). Specifically, it relates to the distribution of these zeros, which are significant in the study of prime numbers.
The concept of a "Robinson Crusoe economy" is a theoretical construct used in economics to illustrate fundamental concepts of economics, particularly in the context of individual decision-making and resource allocation. It is named after the character Robinson Crusoe from Daniel Defoe's novel, who is shipwrecked on a deserted island and must make decisions about how to use his limited resources for survival.
A sand geyser is a natural phenomenon that occurs when underground water or steam forces sand and sediment upward through a narrow opening in the ground, creating a spout or jet of sand and water that erupts above the surface. This can happen in desert areas or near bodies of water where the appropriate geological conditions exist.

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