A graphene spray gun is a tool designed for applying graphene-based coatings or materials in a liquid form. Graphene, a single layer of carbon atoms arranged in a two-dimensional lattice, has remarkable properties such as high strength, electrical conductivity, and thermal conductivity. These properties make it suitable for various applications, including coatings that enhance the performance of surfaces.
Gravitational instruments refer to devices and technologies that measure gravitational forces and variations in gravitational fields. These instruments are critical in various fields, including geophysics, geology, and planetary science, as well as in monitoring changes in Earth's gravitational field due to factors like tectonic activity, glacial movement, and even variations in water bodies. Some key types of gravitational instruments include: 1. **Gravimeters**: These are sensitive instruments used to measure the acceleration due to gravity.
The European Gravitational Observatory (EGO) is a research facility located in Italy, specifically in the region of Tuscany. It is primarily dedicated to the study of gravitational waves, which are ripples in spacetime caused by some of the most energetic and violent processes in the universe, such as the collision of black holes or neutron stars. EGO is home to the Virgo interferometer, a large-scale gravitational wave detector.
Gravity anomalies refer to variations in the Earth's gravitational field due to differences in geological structures, density variations in the Earth's crust, and other variations in subsurface materials. In the context of Britain and Ireland, gravity anomaly studies can reveal important information about the geological features and processes of these regions. ### Key Points about Gravity Anomalies in Britain and Ireland: 1. **Regional Geological Insights**: Gravity anomalies can help identify geological structures such as mountain ranges, basins, and faults.
The 14th century witnessed a period of intellectual activity in Greece, particularly in the Byzantine Empire, although it is not as well known for its mathematical developments as other periods. The majority of notable mathematical advances during this time were influenced by earlier works from ancient Greek mathematicians and were often intertwined with philosophical and theological discussions. One of the most prominent figures of this era was **Gregory of Nyssa**, who although primarily known for his contributions to theology, also engaged with mathematical ideas.
The 15th century was a period of significant transition in Europe, marked by the Renaissance, which revived interest in classical knowledge, including that of ancient Greek mathematicians. While the most prominent figures in Greek mathematics, like Euclid, Archimedes, and Ptolemy, lived much earlier (in classical antiquity), there were mathematicians in the Byzantine Empire (which was the center of Greek culture and scholarship during the 15th century) who contributed to the transmission of this knowledge.
GW170608 is the designation given to a gravitational wave event detected by the LIGO (Laser Interferometer Gravitational-Wave Observatory) and Virgo observatories. It was observed on June 8, 2017, and is notable for being the first observation of gravitational waves from the merger of two black holes that were both relatively light compared to other black hole merger events detected by LIGO.
Daniel Gorenstein was an American mathematician known for his contributions to group theory and finite groups. He made significant advances in the classification of finite simple groups and was a key figure in the development of the theory surrounding them. Gorenstein's work has had a lasting impact on algebra and mathematical research. He also authored several papers and books during his career, enhancing the understanding of group structures.
David Harbater is a renowned mathematician known for his contributions to areas such as algebraic geometry, number theory, and arithmetic geometry. He has published significant research in these fields and has been involved in mathematical education and mentoring.
Greek women mathematicians refer to female mathematicians from Greece who have made significant contributions to the field of mathematics. Historically, the study of mathematics was predominantly male-dominated, but in more recent years, women have increasingly made their mark in various areas of mathematical research and education in Greece. Some notable Greek women mathematicians include: 1. **Maria K. Kopsida**: Known for her work in functional analysis, linear algebra, and applied mathematics.
As of my knowledge cutoff date in October 2023, there is no widely recognized public figure, concept, or term known as "Aaron Afia." It is possible that it could refer to a specific individual, local event, or niche topic not widely documented in major sources.
Dionysios Pyrrhos, also known as Dionysios the Pyrrhic or Dionysios of Pyrrhus, is a historical figure who appears in the context of ancient Greek history. However, there seems to be some confusion or ambiguity surrounding the specific reference to "Dionysios Pyrrhos," as there are no widely recognized or prominent figures under that exact name in classical history.
As of my last knowledge update in October 2023, there is no widely known figure or concept named Arie Bialostocki in public discourse, academia, or popular culture. It's possible that he could be an emerging individual in a specific field or a name associated with a niche topic that has not gained widespread recognition.
Bettina Eick may refer to a specific individual, likely related to a particular field or context, but as of my last knowledge update in October 2023, there isn't widely recognized information on a notable person by that name.
Panagiota Daskalopoulos is not a well-known figure in popular media or literature up to my last knowledge update in October 2023. It's possible that she may be a private individual, a professional in a specific field, or a lesser-known public figure. If you have more context or a specific area (such as politics, sports, academia, etc.
Gerrit Bol could refer to a few different things depending on the context, but as of my last knowledge update in October 2023, there is no widely known public figure, concept, or product specifically named "Gerrit Bol." It’s possible that it could refer to a person, a business, or an entity that is less prominent or specific to a local area or industry.
Lithalsa is not a widely recognized term and may refer to different concepts depending on the context. It could potentially be a brand, a specific term in a niche field, or something that has emerged recently.
In mathematics, specifically in the field of group theory and abstract algebra, an automorphism group is a concept that involves the symmetries of a mathematical structure. ### Definition An **automorphism** is an isomorphism from a mathematical object to itself. In other words, it is a bijective mapping that preserves the structure of the object.
"Carol Walker" could refer to various individuals or concepts, depending on the context. If you're referencing a specific person, it could be an artist, a writer, an academic, or someone else notable. One well-known figure is Carol Walker, an artist known for her intricate paper cut-outs and exploration of race and gender issues in her work.
Charles Sims is an American mathematician known for his contributions to various areas of mathematics, particularly in group theory, geometry, and mathematical visualization. He is notably recognized for his work on the classification of 3-manifolds and for his development of certain mathematical algorithms and visual representations. Sims is also associated with developments in areas such as computational group theory, where he has contributed to the understanding of finite groups and their properties.

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