The 64th meridian east is an imaginary line of longitude that is located 64 degrees east of the Prime Meridian, which is defined as 0 degrees longitude. It runs from the North Pole to the South Pole.
The 85th meridian west is a line of longitude located 85 degrees west of the Prime Meridian, which runs through Greenwich, England. Lines of longitude are used to measure distances east and west of this reference line. The 85th meridian west travels primarily through North America, passing through parts of Canada and the United States, and it intersects several states, including Kentucky, Tennessee, and Mississippi.
The 96th meridian west is a line of longitude located at 96 degrees west of the Prime Meridian. It runs from the North Pole to the South Pole and passes through several U.S. states and regions. In the United States, it crosses areas such as: - Minnesota - Iowa - Missouri - Kansas - Oklahoma - Texas The meridian is significant for geographical and cultural reasons, as it divides regions and can help establish time zones.
Direct reduction is a metallurgical process used to extract iron from its ore, typically iron oxide, without the use of coke or other carbon-rich materials to reduce the ore. Instead, it employs gases, primarily hydrogen or carbon monoxide, to remove oxygen from the iron ore, resulting in direct reduced iron (DRI) or sponge iron.
"Metalworking stubs" typically refer to small, unfinished, or intermediate pieces of metalwork that may be used in various manufacturing processes. However, the term can have different connotations depending on the context. Here are a couple of interpretations: 1. **General Meaning**: In metalworking, a "stub" could refer to a short length of material that's left over after a piece has been cut or shaped.
Metal Injection Molding (MIM) is a manufacturing process that combines the principles of injection molding and powdered metallurgy to produce complex metal parts with high precision and tight tolerances. This technique is particularly advantageous for producing small to medium-sized components that would be difficult or costly to manufacture using traditional methods. ### Process Steps: 1. **Feedstock Preparation**: A mixture of metal powder and a polymer binder is created.
The Airline Teletype System, often referred to as Teletype or simply TTY, was an early communication method used within the airline industry for transmitting information. It relied on teleprinter machines that would send and receive typed messages over telephone lines. ### Key Features: 1. **Communication**: The system enabled airlines, travel agents, and other stakeholders to send and receive flight schedules, ticketing information, passenger details, and other operational data rapidly.
The Hazardous Inflight Weather Advisory Service (HIWAS) is a program developed by the Federal Aviation Administration (FAA) in the United States to provide pilots with critical information about hazardous weather conditions that may impact flight safety. It is particularly designed to deliver timely and relevant information to pilots flying in airspace where traditional weather reporting may not be as readily available.
ISO 9060 is an international standard developed by the International Organization for Standardization (ISO) that specifies the classification of instruments used for measuring solar radiation, specifically solar irradiance. The standard provides definitions and related terminology to categorize solar radiation sensors based on their performance characteristics. ISO 9060 outlines different classes of solar radiation instruments: 1. **Secondary Standard**: High-accuracy instruments that meet stringent specifications for calibration and measurement.
The Long Lived In-situ Solar System Explorer (LLISSE) is a proposed spacecraft mission concept aimed at exploring the solar system, particularly focusing on planets and celestial bodies like Mars, Venus, and other locations within the inner solar system. The primary goal of LLISSE is to conduct long-duration, in-situ scientific investigations, which would involve long-term studies of the environments and conditions on these celestial bodies.
Global Horizontal Sounding (GHS) is a remote sensing technique used primarily in the field of meteorology and atmospheric science. It involves the measurement of atmospheric properties at various altitudes using soundings—essentially vertical profiles of the atmosphere's temperature, humidity, pressure, and other characteristics. ### Key Components of Global Horizontal Sounding: 1. **Remote Sensing**: GHS typically utilizes remote sensing tools such as satellites or ground-based radar that can profile the atmosphere horizontally across large geographic areas.
Weather and Society Integrated Studies (WASIS) is a research initiative that aims to improve the understanding of the complex interactions between weather, climate, and societal impacts. The focus of WASIS is to bridge the gap between meteorology and social sciences to enhance the ability to forecast and communicate weather-related risks and to support decision-making processes in various sectors.
TORRO can refer to various things depending on the context, but one of the most common references is to the TORRO scale, which is a classification system used for measuring the intensity of tornadoes. The TORRO scale ranges from T0 (the weakest) to T11 (the strongest), with different levels indicating the potential damage and effects associated with the tornado. Another possibility could be TORRO, which may refer to specific organizations, products, or other entities with that name.
Smith Dharmasaroja is a prominent Thai entrepreneur and businessman, best known for his contributions in the field of entrepreneurship and business development in Thailand. He has been involved in various industries, particularly in technology, and is recognized for his role in promoting innovation and startup culture in the country. Dharmasaroja has been influential in fostering connections between startups and investors, helping to create a vibrant ecosystem for new businesses in Thailand.
A Freeze Watch is a weather advisory issued by meteorological agencies to alert the public about the possibility of freezing temperatures that could pose a risk to agricultural interests, sensitive plants, and other outdoor activities. It typically indicates that temperatures are expected to drop to or below freezing, often in the overnight hours, but the exact conditions are not yet certain enough to warrant a Freeze Warning.
Mesoscale meteorology is a branch of meteorology that focuses on atmospheric phenomena that are intermediate in scale, typically ranging from about 2 to 200 kilometers (1 to 125 miles). This scale encompasses various weather events and features that are too large to be classified as microscale (which deals with phenomena smaller than 2 km) and too small to fall under the macroscale (which includes larger systems like synoptic weather systems that can span hundreds to thousands of kilometers).
The Chow–Rashevskii theorem is a fundamental result in differential geometry and the theory of control systems. It pertains to the accessibility of points in a control system defined by smooth vector fields.
The United States Army Command, Control, Communication, Computers, Cyber, Intelligence, Surveillance, and Reconnaissance Center, often abbreviated as C5ISR Center, is a key component of the U.S. Army’s efforts to enhance its capabilities in various areas of military operations.
A Three-Axis Acceleration Switch is a type of sensor that detects acceleration forces in three different directions (typically referred to as the X, Y, and Z axes). These sensors are used to measure motion and orientation, and they can sense changes in velocity and position due to acceleration.
The Aviation Applied Technology Directorate (AATD) is a division of the U.S. Army that focuses on advancing aviation technology to improve the capabilities and safety of military aviation operations. AATD is part of the Army's Combat Capabilities Development Command Aviation and Missile Center and conducts research, development, and testing in various areas related to aviation, including flight systems, avionics, and operational concepts.

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