HaeIII is a restriction enzyme, also known as a restriction endonuclease, which is derived from the bacterium *Haemophilus aphrophilus*. It recognizes and cleaves specific sequences of DNA, typically at the sequence "GG|CC" (where the vertical bar indicates the cut point). Restriction enzymes like HaeIII are crucial tools in molecular biology and biotechnology for various applications, including DNA cloning, genetic engineering, and analysis of DNA fragments.
Elfatih Eltahir is a prominent Sudanese-American hydrologist and climate scientist known for his research on hydroclimatology, water resources, and the impacts of climate change on water systems. He is a faculty member at the Massachusetts Institute of Technology (MIT), where he conducts research and teaches in areas related to hydrology and climate.
Russian cryptographers are individuals from Russia who specialize in the study and practice of cryptography, which is the science of securing communication and information by transforming it into a secure format. This field encompasses a variety of techniques and methodologies for encoding messages, ensuring confidentiality, integrity, authentication, and non-repudiation. Historically, Russia has a prominent role in the development of cryptographic techniques and cryptographic theory, especially during the Cold War era, when secure communication was vital for national security.
Siarnaq is a celestial body, specifically a moon of the planet Saturn. It is one of the smaller moons of Saturn and is classified as a member of the irregular moons, which tend to have eccentric and inclined orbits. Siarnaq was discovered in 2000, and it is named after a figure in Inuit mythology. The moon is characterized by its distinctive features, including a relatively dark surface and a composition thought to be primarily composed of ice and rock.
The 60th meridian west is a line of longitude that is 60 degrees west of the Prime Meridian, which is located at 0 degrees longitude. This meridian runs from the North Pole to the South Pole and passes through several countries in North America and South America, including parts of Canada, the United States, and countries in the Caribbean and South America, such as Colombia.
Lists of asteroids typically refer to the various catalogs and databases that document the asteroids discovered in our solar system. These lists can include a wide range of information about each asteroid, such as its designation number, name, size, orbital characteristics, and sometimes other data such as composition and surface features. Some of the notable lists and catalogs include: 1. **Main Belt Asteroids**: A list of asteroids primarily located in the asteroid belt between Mars and Jupiter.
pip (package manager) by Ciro Santilli 40 Updated 2025-09-09
How many stupid bugs. How many stupid bugs do we need to face???
Bert Hubert by Ciro Santilli 40 Updated 2025-07-16
Co-founder of PowerDNS, an open source dNS implementation.
Homepage: berthub.eu/ says:
I sometimes contribute to science, I care a lot about Europe, innovation, biology & health
.
All stuff Ciro cares about too! Cool dude! In particular Ciro loved his quote of I should have loved biology.
He's writing a fun-sounding book about molecular biology as of 2022: berthub.eu/dna-book. Appears to be closed source though. Ciro wonders if he really needs to sell the book for money after all those years though, rather than just publishing it online for free.
Looking at Bert just brings the Dutch Golden Age, and more in particular Antonie van Leeuwenhoek to mind. Epic.
Video 1.
How life is Digital by Bert Hubert (2021)
Source. Just a "boring" overview of the central dogma of molecular biology ;-)
"Paul Silver" could refer to a number of things depending on the context, as it's not a widely recognized term or figure. It might refer to a person's name, possibly someone in a specific field such as business, art, or entertainment. If you're thinking of a specific Paul Silver, providing more context would help narrow it down to the right reference. Alternatively, it could also be a brand, company, or concept.
Identity fusion is a psychological concept that refers to a strong, personal connection between an individual and a group, leading to a sense of oneness or unity with that group. This phenomenon goes beyond mere social identification, where individuals recognize themselves as members of a groupidentity fusion involves a deep emotional bond that can significantly influence behavior and decision-making.
Linear motion refers to the motion of an object along a straight path. It can be described in terms of displacement, velocity, acceleration, and time. In linear motion, the position of an object changes in a straight line and can be characterized by the following key concepts: 1. **Displacement**: The shortest distance from the initial position to the final position of the object, which includes the direction of the movement.
The Treaty of Zaragoza, signed on April 22, 1529, was an agreement between Spain and Portugal that established a maritime boundary between the two nations in the Spice Islands, also known as the Moluccas. This treaty was a follow-up to the Treaty of Tordesillas, which had previously divided the newly discovered lands outside Europe between Spain and Portugal.
Georg Gottlob is a prominent computer scientist known for his contributions to theoretical computer science, particularly in the areas of logic programming, query languages, and database theory. He is recognized for his work on the foundations of knowledge representation and reasoning, as well as for developing algorithms and techniques related to efficient query processing and optimization in databases.
Model-Based Definition (MBD) is a method used in engineering and manufacturing where product information, including geometry, dimensions, and tolerances, is contained within a 3D model rather than in traditional 2D drawings. MBD leverages 3D Computer-Aided Design (CAD) models to convey all necessary information for manufacturing and quality control processes.
Yevgeny Dyakonov is a Russian scientist known for his work in the field of theoretical physics, particularly in areas related to condensed matter physics and electromagnetism. He is recognized for contributions to the study of electromagnetic phenomena, spintronics, and related materials.
Lance Hoffman is a computer scientist and professor known for his work in the fields of cybersecurity, computer security, and privacy. He has been involved in academic research and has contributed to discussions on various topics related to information security. He may also be recognized for his involvement with organizations and institutions focusing on technology and its implications for society.
Los Alamos chess is a variant of chess that was invented in the 1970s by a group of chess enthusiasts in Los Alamos, New Mexico. This variant is played on a standard chessboard with the regular pieces, but it introduces some unique rules that differentiate it from traditional chess. In Los Alamos chess, each player has the ability to move a piece and then "block" the opponent's piece with a different piece on the next turn, adding a strategic layer to the game.
Hal Abelson is a prominent computer scientist and educator, known for his contributions to computer science education, programming languages, and the development of the field of artificial intelligence. He is a professor of electrical engineering and computer science at MIT (Massachusetts Institute of Technology) and has co-authored several influential textbooks, including “Structure and Interpretation of Computer Programs” (SICP), which is widely used in computer science curricula.

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