Søren Galatius is a mathematician known for his work in the fields of topology and algebraic topology, particularly in relation to the study of algebraic structures that arise from topological spaces. He is associated with research that investigates the connections between algebraic topology, geometry, and mathematical physics.
Walther Mayer was an Austrian mathematician known for his work in the fields of differential geometry and mathematical physics, particularly related to Einstein's theory of relativity. He made significant contributions to the understanding of geometrical concepts and their applications in theoretical physics.
Werner Gysin is not a widely recognized figure in public life or history, based on the information available up to October 2023. It's possible that he could be a private individual, a lesser-known professional, or a figure in a specific niche or context not broadly covered in mainstream sources.
William S. Massey could refer to a person or a specific individual associated with various fields, such as academia, science, or other professional areas. However, without additional context, it's challenging to provide a precise answer, as there might be multiple people with that name.
Wolfgang Franz is a mathematician known for his contributions to various areas of mathematics, including functional analysis and operator theory. He has published several papers and has been involved in academic activities related to his field. However, it is important to clarify that there may be limited widely available information about him compared to more prominent figures in the field.
The Császár polyhedron is a non-convex polyhedron that is a type of self-intersecting figure. It is characterized by its unique properties regarding its vertices, edges, and faces. The Császár polyhedron has 14 faces, 28 edges, and 14 vertices. Importantly, its faces consist of two types: quadrilateral and triaugmented triangular prisms.
Zdeněk Frolík is a notable Czech geneticist and researcher, primarily recognized for his contributions in the fields of genetics and molecular biology. His work may encompass various aspects of genetic research, including the study of gene function and regulation, the genetics of plant and microbial systems, or related biological topics.
A Hadamard manifold is a type of Riemannian manifold that is both complete and simply connected, and that has a non-positive curvature. More precisely, it is a space where the geodesic triangles are "thin," meaning that the distance between points on the triangle is less than or equal to the distance between corresponding points in the Euclidean space.
Regina is a software program designed for the manipulation and exploration of polynomial rings and ideals. It is particularly useful in the field of computational algebra and algebraic geometry. Regina can perform various operations, including: 1. **Polynomial Manipulation**: It can handle polynomials with several variables, perform addition, multiplication, and division.
The term "tunnel number" can refer to different concepts depending on the context. However, one common interpretation in the field of knot theory is as follows: **Tunnel Number in Knot Theory:** In knot theory, the tunnel number of a knot refers to the minimal number of "tunnels" required to represent the knot when it is embedded in three-dimensional space.
The Preimage Theorem is a result in topology, specifically in the context of continuous functions and topological spaces. It provides insight into how continuous functions behave with respect to the structure of topological spaces.
Darda is a brand known for its miniature toy cars and racetrack systems. The toys are distinguished by their intricate designs, high-quality construction, and the ability to achieve impressive speeds due to a unique wound-up motor mechanism. Darda cars are often made from durable plastic and metal components, allowing them to withstand various types of play. The Darda system often includes race tracks with loops, jumps, and other obstacles, providing an engaging experience for children and even hobbyists.
Lesney Products was a British toy company founded in 1953 by Leslie Smith and Rodney Smith. The company is best known for producing the popular line of die-cast toy vehicles under the name Matchbox. The Matchbox brand became iconic for its realistic miniature model cars, trucks, and other vehicles, which were sold in small boxes resembling matchboxes. Lesney Products gained significant success in the 1960s and 1970s, becoming one of the leading toy manufacturers in the world.
Protocol ossification refers to a situation in the design and implementation of communication protocols where certain aspects become rigid and unchangeable over time. This rigidity can occur due to a number of factors, often leading to challenges in adapting protocols to new requirements or innovations.
Supersonic transports (SSTs) are aircraft designed to fly faster than the speed of sound, which is approximately 343 meters per second (about 1,125 kilometers per hour or 700 miles per hour) at sea level. The most famous example of a supersonic transport is the Concorde, which could cruise at speeds of around Mach 2.04 (about 1,354 miles per hour or 2,180 kilometers per hour).
Energy in transport refers to the various forms of energy used to move people and goods from one location to another. It encompasses the energy systems, technologies, and practices that enable transportation across different modes, including road, rail, air, and maritime transport. Here are the key aspects of energy in transport: 1. **Types of Energy Sources**: - **Fossil Fuels**: Traditional transport systems primarily rely on gasoline, diesel, and jet fuel, which are derived from oil.
International transport refers to the movement of goods, services, or individuals across national borders. This can occur via various modes, including: 1. **Air Transport**: Utilizes airplanes to move cargo and passengers quickly over long distances, often essential for high-value or time-sensitive shipments. 2. **Maritime Transport**: Involves shipping goods via ocean or inland waterways using cargo ships, container vessels, and bulk carriers.
"People in Transport" generally refers to the various roles and responsibilities of individuals involved in the transportation sector. This can encompass a wide range of professions and stakeholders, including: 1. **Transport Workers**: This includes drivers (e.g., bus, taxi, truck), pilots, train conductors, and maritime personnel (e.g., ship captains, deckhands).
"Transport controversies" generally refer to disputes, debates, or discussions surrounding issues related to transportation systems and policies. These controversies can arise from a variety of factors, including environmental concerns, social justice, urban planning, funding, safety, and technological advancements. Key areas of transport controversies often include: 1. **Infrastructure Development**: Large infrastructure projects, such as highways, railways, bridges, and airports, can lead to controversies over funding, environmental impact, and displacement of communities.
Transport infrastructure refers to the foundational systems and facilities that support transportation activities, enabling the movement of people and goods. It encompasses a wide range of components, including: 1. **Roads**: Highways, streets, and local roads that facilitate vehicular movement. 2. **Railways**: Tracks, stations, and related facilities that support train travel for passengers and freight.

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