A window fan is a type of electric fan specifically designed to be installed in a window, allowing it to draw air in from the outside or push air out of a room. These fans can be useful for improving ventilation, circulating air, and cooling down space in homes, especially during warm weather. Window fans come in various sizes and styles, including single or dual-fan units.
A drumstick is a tool used to play percussion instruments, particularly drums. Drumsticks are typically made of wood, although they can also be made from materials like plastic or metal. They come in various sizes, weights, and designs to suit different playing styles and types of drums. In the context of food, "drumstick" commonly refers to a cut of chicken or other poultry, specifically the lower part of the leg (the thigh and drumstick).
Agricultural machinery refers to a wide array of machines and equipment designed for farming and agricultural purposes. These machines play a crucial role in increasing efficiency, productivity, and precision in farming operations. Agricultural machinery can be used for a variety of tasks throughout the farming process, including: 1. **Soil Preparation**: Equipment such as plows, harrows, and cultivators prepare the soil for planting by turning it over and breaking it up.
Organ builders, also known as organ craftsmen or organmakers, are skilled artisans who design, construct, and maintain pipe organs. These complex musical instruments have a rich history and are often found in churches, concert halls, and other venues. The work of organ builders involves various disciplines, including woodworking, metalworking, electronics, and acoustics.
The Disklavier is a type of player piano that incorporates modern technology to reproduce performances with high precision. Developed by Yamaha, the Disklavier system enables the piano to play itself by using a combination of electronic sensors and actuators that detect and replicate the nuances of a live performance. Key features of the Disklavier include: 1. **Automatic Playback**: The Disklavier can play back recorded performances, allowing users to enjoy renditions of their favorite music without needing a human pianist.
A hoist is a device used for lifting or lowering a load with the use of a drum or lift-wheel around which a rope or chain wraps. Hoists are commonly powered by electric motors, manual cranks, or hydraulic systems. They are utilized in various applications, including construction, manufacturing, warehouses, and personal use, to lift heavy objects safely and efficiently.
The Lifting Operations and Lifting Equipment Regulations 1998 (LOLER) is a set of regulations in the United Kingdom designed to ensure the safety of lifting operations and the equipment used in those operations. It applies to a wide range of industries where lifting equipment is used, including construction, manufacturing, logistics, and healthcare.
A lifting hook is a type of hardware used in various lifting and hoisting applications to hold and secure loads. It is typically part of a rigging assembly and is designed to attach to lifting devices, such as cranes, hoists, or pulleys. Lifting hooks come in various shapes and sizes, depending on their intended use, and they can be made from different materials, often steel, to provide strength and durability.
The COVID-19 pandemic on the Diamond Princess cruise ship was a significant early outbreak of the virus, which occurred in early 2020. The ship was quarantined in Yokohama, Japan, after a former passenger tested positive for COVID-19 after disembarking in Hong Kong.
Safe Routes to School (SRTS) is a program aimed at making it safer and easier for students to walk and bike to school. The initiative seeks to encourage more children to use these active modes of transportation by addressing barriers to walking and biking, such as traffic safety, roadway design, and community awareness.
There are several insightful books that cover the history of American civil engineering, exploring key developments, influential figures, and landmark projects. Here are some notable titles you may find interesting: 1. **"The Great Bridge: The Epic Story of the Building of the Brooklyn Bridge" by David McCullough** - This book provides a detailed narrative of the construction of the Brooklyn Bridge, highlighting both the engineering challenges and the human stories involved.
The history of the automobile is a complex tale that spans several centuries, intertwining advancements in technology, engineering, and societal changes. Here are some key milestones in the development of the automobile: ### Early Concepts and Inventions (17th - 19th Century) - **17th Century:** Early concepts of self-propelled vehicles were proposed, including ideas by inventors like Giovanni Branca, who designed a steam-powered carriage.
The history of transport varies widely by country, reflecting each nation's unique geographic, economic, and cultural circumstances. Here’s a brief overview of the history of transport in several key regions around the world: ### 1. **United States** - **Pre-Colonial and Colonial Era:** Native Americans used canoes, walking paths, and animal trails. European settlers developed roads primarily for horse-drawn carriages.
"Icebreakers" can refer to different things depending on the context. Here are a few common meanings: 1. **Social Activities**: Icebreakers are interactive activities or games designed to help people get to know each other and reduce tension in social settings, such as workshops, meetings, or team-building exercises. They often involve questions, fun challenges, or group activities.
Transport in the Middle Ages refers to the various methods and systems used for the movement of people, goods, and animals during the medieval period, roughly from the 5th to the late 15th century. The transport methods were crucial for trade, military logistics, and everyday travel, and they varied widely depending on geography, available technology, and societal needs.
Transport strikes refer to work stoppages organized by workers in the transportation sector, such as bus, train, airline, or shipping employees, to protest against working conditions, wage disputes, job cuts, or other labor-related issues. These strikes can disrupt public and freight transport, leading to significant inconveniences for commuters and businesses. Transport strikes can take various forms, including: 1. **General Strikes:** Where workers from multiple transport sectors stop work simultaneously.
An ice scraper is a tool used to remove ice, frost, or snow from surfaces, typically from vehicle windshields and windows. It usually consists of a flat, rigid blade attached to a handle. Ice scrapers can be made from various materials, such as plastic, metal, or rubber, and come in different sizes and shapes. Some are designed specifically for removing ice, while others may have a dual function as a snow brush.
A car shuttle train, often referred to as a "car train," is a type of transport service that carries vehicles (like cars, trucks, or buses) across a specific distance via rail. This service is commonly used for transporting vehicles when driving them would be impractical, lengthy, or expensive. Here are some key features of car shuttle trains: 1. **Vehicle Transport**: These trains are designed specifically to transport vehicles.
Kombiverkehr is a German company specializing in intermodal transport solutions, particularly in combining road and rail transport for freight. Founded in 1969, it plays a significant role in enhancing the efficiency of logistics by facilitating the seamless transfer of goods between different modes of transport. The company's services often include the transportation of shipping containers, trailers, and larger freight items across Europe, enabling businesses to reduce transport costs and environmental impact by leveraging the strengths of both rail and road.
The Vogelfluglinie, which translates to "Bird Flight Line" in English, is a popular scenic route that connects the German mainland to the Danish island of Funen. The name refers to the route taken by birds in migration, emphasizing the idea of a straightforward path across water, similar to how birds might fly. The route spans approximately 160 kilometers and includes a ferry crossing between Puttgarden in Germany and Rødbyhavn in Denmark.

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