Cold welding is a solid-state welding process that occurs when two metal surfaces come into contact under sufficient pressure, causing the materials to bond at the atomic level without the need for heat. This phenomenon typically happens with certain metals, such as aluminum, copper, and gold, which can form strong bonds when clean, oxide-free surfaces are pressed against each other.
Welding is a fabrication process that involves joining materials, usually metals or thermoplastics, through coalescence. This is typically achieved by melting the work pieces and adding a filler material, which forms a strong joint upon cooling. There are various welding processes, each with its own advantages, applications, and techniques.
"Langmuir" is a peer-reviewed scientific journal published by the American Chemical Society (ACS). It is named after the Nobel Prize-winning chemist Irving Langmuir and focuses on research in the fields of chemistry, materials science, and chemical engineering. The journal primarily publishes articles related to surface and colloid science, interfacial phenomena, and the properties and behaviors of molecular and nanoscale systems.
The USBM (United States Bureau of Mines) wettability index is a measure used to characterize the wettability of porous media, particularly in the context of petroleum production and reservoir engineering. Wettability refers to the affinity of a solid surface (such as rock) to preferentially attract one fluid over another, such as oil or water.
Ultrahydrophobicity refers to a surface property characterized by an extremely high degree of water repellency. Typically, a surface that exhibits ultrahydrophobic behavior has a water contact angle greater than 150 degrees. This means that water droplets on such surfaces tend to bead up and roll off rather than spreading out and adhering to the surface. Ultrahydrophobic surfaces are often created through a combination of chemical and physical structuring.
Earth tide, also known as solid Earth tide or terrestrial tide, refers to the periodic deformation of the Earth's crust caused primarily by the gravitational forces exerted by the Moon and the Sun. Similar to ocean tides, which cause the rise and fall of sea levels, Earth tides result in the slight movement and displacement of solid land. The gravitational pull of the Moon, which is much stronger than that of the Sun due to its proximity, causes the Earth's crust to deform.
"Liquid Time" is a concept often associated with the fluid and flexible nature of time in contemporary life, especially in relation to technology, digital communication, and globalization. It suggests that time is no longer experienced in a linear or rigid way but is instead more adaptable, often influenced by the immediacy and availability of information and interactions in the digital age.
A Peregrine soliton is a type of localized wave structure that arises in nonlinear wave equations, particularly in the context of water waves and optical fibers. It is named after the "Peregrine" falcon due to its fleeting and elusive nature. The Peregrine soliton is characterized by its ability to maintain its shape while traveling at a constant speed, and it is considered a prototype of a rogue wave, a phenomenon that is significantly larger than the surrounding waves and often appears suddenly.
Barbara J. Grosz is a prominent American computer scientist known for her contributions to the fields of artificial intelligence (AI) and natural language processing. She has made significant advancements in understanding the role of language in human communication and how to model these processes in computers. Grosz is particularly recognized for her work on dialogue systems, computational models of discourse, and the intersection of AI with social and collaborative agents.
Stokes drift refers to the phenomenon in fluid dynamics where particles or fluid elements move in a direction slightly different from that of the wave propagation itself due to the non-linear nature of surface waves. This effect is most commonly observed in ocean waves. In a simplified explanation, as a wave travels through the water, it creates circular or elliptical orbital motions of water particles.
Bhavani Thuraisingham is a prominent figure in the fields of computer science and information security, particularly known for her contributions to data privacy, cybersecurity, and information management. She has held academic positions and has been involved in research and education, often focusing on the intersection of data science and security. In addition to her academic work, she has been influential in various professional organizations and has contributed to the development of policies and practices in information technology and security.
C. Mohan is a well-known computer scientist and researcher, particularly recognized for his contributions to the fields of database systems, transaction processing, and distributed computing. He has played a significant role in the development of various concepts related to database management and has contributed to the advancement of transaction models.
Deborah Frincke is a notable figure in the fields of cybersecurity and information assurance. She has held various leadership roles in academia and government, including positions at organizations such as the National Security Agency (NSA). Frincke is recognized for her contributions to research and development in secure systems and for her efforts in promoting cybersecurity education and workforce development. As of my last update, she may have been involved in initiatives aimed at advancing the field of cybersecurity through innovative research and educational programs.
Elizabeth F. Churchill is a prominent researcher and leader in the fields of human-computer interaction (HCI), user experience (UX) design, and social computing. She has a strong background in understanding how people interact with technology and the implications of that interaction on social behavior and design practices. Churchill has held various academic and industry positions, contributing to the development of user-centered design methodologies and advocating for more inclusive and user-friendly technology.
Christine L. Borgman is a prominent figure in the field of information and library science. She is known for her work on digital libraries, information retrieval, and scholarly communication. Borgman has been involved in research regarding the impact of technology on information access and has contributed significantly to the understanding of how users interact with information systems. She has published numerous articles and books on these topics and has served in various academic roles, including as a faculty member and administrator at institutions involved in library and information science education.
David Forsyth is a noted computer scientist, particularly recognized for his work in computer vision, artificial intelligence, and machine learning. He has contributed to various areas including image recognition, object detection, and processing visual data. Forsyth is also known for his academic work, including publishing research papers and teaching at institutions like the University of Illinois at Urbana-Champaign. His contributions have helped advance the field of computer vision, enabling more sophisticated image analysis and understanding.
Danny Hillis is an American inventor, computer scientist, and entrepreneur known for his work in the fields of artificial intelligence, parallel computing, and technology innovation. He co-founded the Thinking Machines Corporation, which was known for developing the Connection Machine, an early massively parallel supercomputer. Hillis has also been involved in various other ventures and initiatives, including work in the field of education and serving as an advisor and researcher at various institutions.
David Ungar is a prominent computer scientist known for his work in programming languages and systems, particularly in the area of object-oriented programming. He is one of the creators of the Self programming language, which introduced many influential concepts in the field of dynamic typing and prototype-based object-oriented programming. Additionally, Ungar has contributed to advancements in garbage collection and optimization techniques in programming languages.
Diane Souvaine is a notable computer scientist and academic, recognized for her contributions to computational geometry and algorithms. She has held various positions in academia, including roles at universities and research institutions. In addition to her research, she has been involved in promoting education and outreach in the field of computer science.
Eric Brewer is an American computer scientist known for his contributions to the fields of distributed systems, cloud computing, and computer networking. He is particularly recognized for his work on the "CAP Theorem" (Consistency, Availability, Partition Tolerance), which describes the trade-offs that must be made in distributed data store systems. Brewer proposed this theorem in 2000 during a keynote address at the Symposium on Principles of Distributed Computing.
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





