Tanaka Hisashige (田中久重), also known as Tanaka Hisashige and sometimes referred to as the "Thomas Edison of Japan," was a prominent Japanese inventor and businessman during the late Edo period and early Meiji period. He was born in 1799 and passed away in 1881. Tanaka was known for his contributions to various fields, particularly in the development of mechanical devices and technology.
Ōmāpere is a small locality in New Zealand, located in the Northland region. It is situated near the northern shore of the Hokianga Harbour and is part of the larger Hokianga area, which is known for its natural beauty, rich Māori culture, and historical significance. The area is characterized by stunning landscapes, including sand dunes and forested hills.
Rotational frequency refers to the number of complete rotations or cycles that an object makes in a given unit of time. It is typically expressed in hertz (Hz), where 1 Hz equals 1 rotation per second. In other words, if an object rotates once every second, its rotational frequency is 1 Hz. Rotational frequency can also be represented in terms of angular velocity, which is often measured in radians per second.
"Signal operating instructions" typically refer to a set of guidelines, protocols, or procedures for operating signal systems, which may be used in contexts like telecommunications, transportation (railway or road signaling), or military communications. However, without additional context, it's unclear what specific "signal operating instructions" you are referring to.
The "lamp cord trick" typically refers to a method often used in the context of magic or illusions. In this trick, a piece of electrical cord (like a lamp cord) is manipulated in such a way that it appears to do something magical or impossible—such as moving on its own or being tied and untied without apparent effort.
The Wirtinger presentation is a method used in algebraic topology, particularly in the study of the fundamental group of a braid or a link in three-dimensional space. It was introduced by Wilhelm Wirtinger in the early 20th century. The Wirtinger presentation gives a way to describe the fundamental group of a knot or link by associating it with a specific set of generators and a set of relations derived from a diagram of the knot or link.
Knowledge equity refers to the fair distribution and access to information, knowledge, and learning opportunities across different groups within society. The concept emphasizes that everyone should have equal access to knowledge resources, regardless of their socioeconomic status, geographic location, or other factors that might limit their ability to acquire and utilize information effectively. Key aspects of knowledge equity include: 1. **Access:** Ensuring that all individuals have the resources they need to obtain knowledge, including internet access, educational materials, and learning environments.
Personal Knowledge Management (PKM) is a set of processes and practices that individuals use to collect, organize, maintain, and share knowledge in a way that enhances their learning and productivity. The concept emphasizes self-directed learning and the proactive management of one's own knowledge resources, skills, and expertise. Here are some key components of PKM: 1. **Collection**: Gathering information from a variety of sources, such as books, articles, online courses, and conversations.
Kyrgyzstan has produced notable women in various fields, including physics, despite the historical and socio-economic challenges they face. While specific names might not always be widely recognized on a global scale, there are organizations and academic institutions in Kyrgyzstan that encourage the participation of women in STEM (science, technology, engineering, and mathematics) fields, including physics.
The Bibi Mariam Cannon, also known as the Bibi Mariam Tomb or Bibi Mariam Mosque, is a historical site located in the region of what is now modern-day Afghanistan. It is believed to date back to the 6th century. The site is often associated with the legend of Bibi Mariam, who is thought to have been a noblewoman or saint. The structure itself is an example of early Islamic architecture and features intricate designs and inscriptions.
Irminger Rings are mesoscale oceanic features that occur in the Irminger Sea, located to the southwest of Greenland. These rings are formed from the dynamics of ocean currents and temperature gradients and are associated with the North Atlantic Ocean's circulation patterns. Key characteristics of Irminger Rings include: 1. **Formation**: They are typically formed from the interaction of warm, saline water from the Atlantic Ocean with colder, fresher water from the Arctic region.
The Gibbons–Hawking–York (GHY) boundary term is an important concept in the context of general relativity and gravitational action principles, particularly when dealing with the Einstein-Hilbert action, which describes the dynamics of gravity.
Relativistic Lagrangian mechanics is an extension of classical Lagrangian mechanics that incorporates the principles of special relativity into the framework of theoretical mechanics. While classical Lagrangian mechanics is effective for describing the motion of objects at non-relativistic speeds (much less than the speed of light), it requires modification to properly address situations where speeds approach the speed of light.
Virtual displacement is a concept used in the fields of mechanics and physics, particularly in the study of classical mechanics and systems in equilibrium. It refers to a hypothetical or imagined small change in the configuration of a system that occurs without the passage of time. In other words, it is a conceptual tool used to analyze the equilibrium of a system by considering small variations in position of the particles or bodies constituting the system.
The Parrott rifle is a type of muzzle-loading artillery piece that was designed by Robert Parker Parrott, a military engineer and ordnance officer in the United States during the 19th century. The design was notable for its unique rifled barrel, which featured a thick exterior made of wrought iron and a thinner interior that was rifled. This construction method allowed the Parrott rifle to withstand higher pressures from the explosive charges used in the cannon's projectiles.
Lasers in cancer treatment refer to the use of focused light beams to target and destroy cancer cells or to assist in various aspects of cancer management. The term "laser" stands for "Light Amplification by Stimulated Emission of Radiation." Lasers can deliver high-energy light to specific areas of the body, resulting in different effects based on the type of laser, its wavelength, and the treatment goals.
In Austria, a municipality (or "Gemeinde" in German) is the smallest administrative unit within the country. Municipalities serve as local government entities responsible for a variety of functions that include providing public services, managing local resources, and maintaining infrastructure. Austria is divided into several municipalities, which can vary greatly in size and population. These municipalities can be urban, such as cities, or rural.
Doris Daou is a prominent figure known for her contributions in the fields of art and culture, particularly in Lebanese and Middle Eastern contexts. She is an artist and curator who has played a significant role in promoting contemporary art and culture in the region. Throughout her career, Daou has been involved in various exhibitions, initiatives, and projects aimed at fostering dialogue and understanding among different cultures through art.
IEEE 1284 is a standard for parallel communication between computers and peripheral devices, most commonly printers. Introduced in 1994, it standardizes the communication protocols for parallel interfaces, primarily replacing the older Centronics interface. Key features of IEEE 1284 include: 1. **Bidirectional Communication**: Unlike earlier standards that primarily supported one-way communication from the computer to the peripheral, IEEE 1284 supports two-way communication, allowing devices to send data back to the computer.
Lego Brick Sketches is a product line from Lego that allows fans to create two-dimensional portraits of popular characters using Lego bricks. These sets include a collection of specially designed bricks and a baseplate, along with instructions to help builders assemble characters from various franchises, including superheroes, animated characters, and more. The sets typically focus on a mosaic-like assembly technique, where builders use colored bricks to create recognizable images of the characters. Each finished piece can serve as a display for fans and Lego enthusiasts.
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!
Intro to OurBigBook
. Source. We have two killer features:
- 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-calculusArticles 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/derivativeVideo 2. OurBigBook Web topics demo. Source. - 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.
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
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. - Infinitely deep tables of contents:
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





