The Dodecahedral Conjecture is a hypothesis in the realm of geometric and combinatorial optimization, specifically concerning the most efficient way to fill space with polyhedral shapes. Proposed by Thomas Hales, the conjecture asserts that the dodecahedron is the optimal shape for partitioning space into convex polyhedra in such a way that it minimizes the surface area while maintaining a consistent volume.
In mathematics, a conchoid is a type of curve that is defined using a fixed point and a given curve. The most common form is known as the conchoid of a curve, which is typically associated with a specific type of mathematical relationship.
A **piecewise algebraic space** is a concept in algebraic geometry that may be part of a broader discussion around algebraic spaces or schemes over a certain base. The idea generally involves spaces that can be described in terms of algebraic structures but are constructed from several pieces or segments that may be defined piecewise, much like how piecewise functions in calculus are defined.
Planar projection, often referred to in fields such as cartography, geometry, and computer graphics, involves representing a three-dimensional object or surface onto a two-dimensional plane. This technique is used to simplify complex shapes and facilitate visualization, measurement, and analysis. ### Key Aspects of Planar Projection: 1. **Types of Projection**: - **Orthographic Projection**: Displays objects in a way that preserves their true dimensions, typically showing multiple sides simultaneously without perspective.
The Fulton–MacPherson compactification is a technique in algebraic geometry that provides a way to compactify certain moduli spaces of algebraic objects, particularly those related to curves and, more generally, to the study of moduli spaces of unstable, pointed, or decorated objects. This compactification was introduced by William Fulton and Bernd MacPherson in the early 1990s. ### Key Concepts 1.
GEUP (Geometric Modeling and Computational Geometry) is a software tool and platform designed for geometric modeling, particularly in educational contexts. It is often used in engineering, mathematics, and computer science courses to help students understand concepts related to geometry and spatial visualization. Specific features of GEUP may include: 1. **Interactive Geometry**: Users can create and manipulate geometric figures in a visual environment, allowing for real-time exploration of geometric principles.
"Lentoid" is not a widely recognized term and may refer to a few different things depending on the context. It could be mistaken for "lenticular," which generally describes something that is lens-shaped or related to lenses, often used in optics. In a biological context, "lentoid" could refer to structures that are lens-shaped as well.
Weather satellites of the Soviet Union were part of the country's efforts to monitor and predict weather patterns, as well as to collect data for agricultural, meteorological, and military purposes. The Soviet space program developed a series of weather satellites known primarily as the **Meteor** series. Here's an overview: 1. **Meteor Series**: The main series of Soviet meteorological satellites launched from the early 1960s onwards.
The National Weather Service (NWS) office in Binghamton, New York, is a local branch of the National Weather Service, which is part of the National Oceanic and Atmospheric Administration (NOAA). This office is responsible for monitoring and forecasting weather conditions, issuing warnings and alerts for severe weather, and providing climate data for the region. The Binghamton office covers parts of New York, including the Southern Tier and parts of northeastern Pennsylvania.
The Panama Fracture Zone is a significant geological feature that is part of the tectonic landscape of the eastern Pacific Ocean. It is a transform fault situated between the Cocos Plate to the southwest and the North American Plate to the northeast. This fault zone is characterized by horizontal movement, where two tectonic plates slide past each other sideways as opposed to converging or diverging. The Panama Fracture Zone has implications for tectonics and seismic activity in the region.
The Sovanco Fracture Zone is a significant geological feature located in the Atlantic Ocean, primarily situated to the southeast of the Azores archipelago. It is characterized by a series of fracture and transform faults that mark the boundary where tectonic plates move past one another horizontally. Fracture zones like the Sovanco Fracture Zone typically form as a result of the divergence of tectonic plates, which creates stress and leads to the formation of faults.
Conchology is the scientific study of mollusk shells, which includes the examination of their structure, classification, and ecology. Mollusks are a diverse group of invertebrates that include animals such as snails, clams, octopuses, and squids. The shells, often composed of calcium carbonate, serve various purposes, including protection from predators, environmental adaptation, and locomotion.
Geoduck aquaculture refers to the farming and cultivation of geoduck clams (Panopea generosa), a species of large, edible clam native to the Pacific Northwest coast of North America. Geoducks are known for their size, distinctive long siphons, and sweet flavor, making them a delicacy in various culinary traditions, especially in Asian cuisines.
Marine larval ecology is the study of the life stages of marine organisms that occur after fertilization and before reaching a juvenile or adult stage. This field focuses on the development, distribution, behavior, and interactions of larvae in the marine environment. Marine larvae can include a wide variety of organisms, such as fish, invertebrates (like mollusks and crustaceans), and coral, each with unique larval characteristics and ecological roles.
Meristics is a field of study in biology that focuses on counting and measuring specific morphological features of organisms, particularly in the context of fish and other aquatic animals. This includes quantifying characteristics such as the number of fin rays, scales, vertebrae, and other structural elements. Meristic counts are often used in taxonomy, systematics, and ecological studies to help differentiate species and understand their evolutionary relationships.
Ophiolite is a geologic term that refers to a specific type of rock assemblage that represents oceanic crust and the underlying upper mantle that has been uplifted and exposed above sea level, typically due to tectonic processes. Ophiolites are important in the study of plate tectonics and the formation of the Earth’s crust.
Rollover Pass is a tidal inlet located in Texas, near the Gulf of Mexico, specifically at the eastern end of Bolivar Peninsula in Galveston County. It was historically an important waterway that connected the Gulf of Mexico with the back bay systems, allowing for saltwater exchange and providing access for fishermen and recreational boaters. The pass was formed as a result of natural processes, including erosion and sediment deposition.
Qoornoq (also known as Qornoq) is a small, uninhabited island located in the Kujalleq municipality in southern Greenland. It is situated near the larger island of Nanortalik and lies off the coast of southern Greenland. The island is part of the fjord landscape characteristic of the region and is known for its rugged terrain, beautiful natural scenery, and striking views of the surrounding waters.
The Chukchi Shelf is a submerged continental shelf located in the Arctic Ocean, off the northwestern coast of North America, primarily off the coast of Alaska. It extends from the Chukchi Sea into the Arctic Ocean and is named after the Chukchi people, who are indigenous to the region. The shelf is characterized by shallow waters, typically less than 200 meters deep, and is rich in biological diversity, including various marine species that are adapted to the harsh Arctic environment.
Hope Basin is a geographical feature located on the coast of Antarctica. Specifically, it is a large, ice-covered basin situated near the eastern edge of the Antarctic Peninsula. The basin is of interest to researchers studying climate change, glaciology, and the dynamics of ice sheets, as it plays a role in understanding the stability and behavior of ice in the region. Research in areas like Hope Basin can provide insights into sea-level rise and the impacts of global warming on polar regions.

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