Active heave compensation (AHC) is a technology used in maritime and offshore engineering to counteract the vertical motion of a vessel caused by waves and sea conditions. Its primary purpose is to maintain the position of equipment, such as cranes or submersible vehicles, while they are being deployed or operated from a moving platform like a ship or offshore platform.
As of my last knowledge update in October 2023, the list of Canadian provinces and territories by life expectancy can vary slightly depending on the source and the year of the data. However, generally, the life expectancy in Canada has been reported as high compared to global standards. Here is a typical ranking based on life expectancy: 1. **British Columbia**: Often ranks the highest with a life expectancy around 82-84 years.
As of my last knowledge update in October 2021, life expectancy can vary over time due to factors such as health care quality, lifestyle, and social conditions. However, I don't have access to the most current data or specific rankings by year. As of 2021, generally, countries in Europe with the highest life expectancy included: 1. **Switzerland** 2. **Spain** 3. **Italy** 4. **Norway** 5. **Iceland** 6.
As of my last update, Japan is known for having one of the highest life expectancies in the world, and this can vary by prefecture due to factors such as healthcare quality, lifestyle, and environment. While specific rankings and figures can change over time, the following prefectures have been noted for their high life expectancy: 1. **Kyoto** 2. **Osaka** 3. **Hyogo** 4. **Tokyo** 5. **Shiga** 6.
As of my last knowledge update in October 2021, life expectancy in Mexico can vary significantly by state due to factors such as health care access, socio-economic conditions, diet, and lifestyle. Generally, states with better economic conditions and healthcare services tend to have higher life expectancies. Typically, states like Mexico City, Nuevo León, and Jalisco have been known for higher life expectancies, while some southern states may report lower figures.
As of my last update in October 2021, life expectancy varies across Oceanian countries, reflecting differences in healthcare, lifestyle, economic conditions, and other factors. While I cannot provide real-time statistics, I can give you a general idea based on historical data. Here's a brief overview of life expectancy in some Oceanian countries, roughly from highest to lowest: 1. **Australia** - Approximately 83 years 2. **New Zealand** - Approximately 81 years 3.
As of my last update, specific rankings and statistics regarding life expectancy in South African provinces can vary based on the source and the year of the data. Generally, life expectancy in South Africa has been influenced by factors such as healthcare access, socio-economic conditions, and the prevalence of diseases like HIV/AIDS. Typically, the provinces with higher life expectancy tend to be more urbanized and have better access to healthcare facilities, while those with lower life expectancy often face significant socio-economic challenges.
As of my last knowledge update in October 2021, specific statistics regarding life expectancy in Turkish provinces may have changed and might not be readily available. The life expectancy can vary significantly across different provinces due to factors like healthcare access, economic conditions, lifestyle, and education.
As of my last knowledge update in October 2023, life expectancy varies across U.S. states and territories due to various factors such as healthcare access, socio-economic status, lifestyle choices, and public health policies. Although I don't have the exact figures readily available, I can provide a general overview based on historical trends: 1. **States with the Highest Life Expectancy:** - Hawaii - California - New York - Massachusetts - Connecticut 2.
As of my last update in October 2023, there isn't a definitive, universally accepted list of cities in China ranked specifically by life expectancy, as health data can vary over time and between different sources. However, generally, larger cities and those with better healthcare systems tend to have higher life expectancies. Cities like Beijing, Shanghai, Guangzhou, and Shenzhen often report higher life expectancies compared to smaller, rural areas primarily due to better access to healthcare, improved living conditions, and economic opportunities.
As of my last update in October 2023, life expectancy data can vary somewhat based on the source and the year of the report. Generally, the World Health Organization (WHO), the United Nations (UN), and the World Bank are reliable sources for this information. Typically, countries with the highest life expectancy often include: 1. **Japan** 2. **Switzerland** 3. **Singapore** 4. **Spain** 5. **Italy** 6. **Australia** 7.
Lift chair by Wikipedia Bot 0
A lift chair is a type of recliner designed to assist individuals, particularly the elderly or those with mobility challenges, in standing up and sitting down safely. The chair is equipped with a motorized mechanism that tilts the seat forward and lifts the user up to a standing position, making it easier for them to get out of the chair without excessive strain. Lift chairs typically come with various reclining positions, allowing users to adjust the backrest and footrest for their comfort.
Shear legs by Wikipedia Bot 0
Shear legs, also known as a shear leg frame or sheer legs, is a type of lifting apparatus used in construction and rigging. It consists of two vertical legs that are connected at the top by a crossbar, with a pully or block system that allows for the lifting of heavy loads. The design utilizes the principles of leverage to stabilize and lift materials or equipment.
Carrying pole by Wikipedia Bot 0
A carrying pole, also known as a yoke or a shoulder pole, is a long, sturdy pole or beam used to carry loads, typically by balancing the load at either end. This tool is often employed in manual labor, particularly in agricultural and hauling contexts. The carrying pole is designed to rest on the shoulders of the individual carrying it, with weights or containers suspended from either end of the pole.
Crane (machine) by Wikipedia Bot 0
A crane is a type of machine that is used to lift and move heavy loads. It typically consists of a hoist, which is a device for lifting, and a system that allows for horizontal movement. Cranes are commonly used in construction, manufacturing, shipping, warehousing, and various industrial operations. There are different types of cranes, each designed for specific tasks and environments.
Derrick by Wikipedia Bot 0
The term "Derrick" can refer to several things depending on the context: 1. **Engineering and Construction**: A derrick is a type of crane that is typically used for lifting heavy loads. It consists of a framework that supports a pulley and is often used in construction sites or for marine applications.
Entertainment rigging refers to the process of setting up and securing equipment used in various entertainment venues, such as theaters, concert halls, and events. This involves the use of rigging systems to suspend and support structures like lighting fixtures, audio equipment, scenery, and special effects. Rigging is crucial for ensuring that these elements remain safe and stable during performances or events.
Forklift by Wikipedia Bot 0
A forklift is a powered industrial vehicle used to lift and move materials over short distances. It typically consists of a vehicle with two forks at the front, which can be raised and lowered to pick up, transport, and stack loads. Forklifts are commonly used in warehouses, construction sites, factories, and distribution centers for handling heavy items. Key components of a forklift include: 1. **Mast**: The vertical assembly that lifts and lowers the load.
Gin pole by Wikipedia Bot 0
A gin pole is a type of lifting device used in construction and rigging applications. It typically consists of a tall, slender structure (the pole) that is used to lift heavy loads, such as antennas, towers, or other equipment. The gin pole is often used in conjunction with a pulley system, ropes, and a winch to increase mechanical advantage and enable safe lifting of heavy objects to significant heights.
Mesocosm by Wikipedia Bot 0
A mesocosm is an enclosed ecosystem that is used for scientific study and experimentation. It simulates natural environmental conditions on a smaller scale, allowing researchers to examine ecological processes and interactions in a controlled setting. Mesocosms can vary in size and design, often incorporating elements of terrestrial, freshwater, or marine ecosystems.

Pinned article: ourbigbook/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