Fictional astrobiologists are characters in literature, film, or other forms of media who study the possibility of life beyond Earth, often in imaginative or speculative contexts. These characters can be scientists conducting research on extraterrestrial life forms, exploring alien worlds, or investigating the conditions necessary for life to exist elsewhere in the universe.
Fiction featuring Merlin, the legendary wizard from Arthurian legend, spans various genres and formats, including novels, films, television series, and graphic novels. Here are some notable examples: ### Novels: 1. **"The Once and Future King" by T.H. White**: This classic retelling of the Arthurian legend focuses on the relationship between Merlin and a young Arthur, exploring themes of fate, power, and morality. 2. **"Merlin" by Stephen R.
John Tracy is a fictional character from the British science fiction television series "Thunderbirds," created by Gerry and Sylvia Anderson. The show originally aired between 1965 and 1966 and is known for its use of marionette puppetry and special effects. In "Thunderbirds," John is the second eldest son of Jeff Tracy, the founder of International Rescue, a secret organization that uses technologically advanced vehicles and equipment to perform daring rescue missions around the world.
Pavel Chekov is a fictional character in the "Star Trek" franchise, primarily known as a young and enthusiastic Starfleet officer. He serves as the navigator aboard the starship USS Enterprise in the original series and its subsequent films. Portrayed by actor Walter Koenig in the original series, Chekov first appeared in the second season of "Star Trek" in 1967.
Seven of Nine, also known simply as Seven, is a fictional character from the "Star Trek" franchise, specifically portrayed in the television series "Star Trek: Voyager." The character is a Borg drone who was liberated from the Borg Collective and is given the human name Annika Hansen. Played by actress Jeri Ryan, Seven of Nine is introduced in the fourth season of "Voyager" and becomes a central character in the series.
"The Four Skillful Brothers" is a folktale that originates from various cultural traditions, particularly in East Asia. The story centers around four brothers, each of whom possesses a unique skill or talent. Together, they embark on adventures that highlight the importance of teamwork, individual strengths, and the value of each brother's abilities. The tale often emphasizes themes such as creativity, problem-solving, and the significance of family bonds.
There are many fictional characters across various media who can teleport. Here are some notable examples: 1. **Nightcrawler (Kurt Wagner)** - A mutant from Marvel Comics, Nightcrawler has the ability to teleport short distances, often leaving behind a cloud of smoke. 2. **Blink (Clarice Ferguson)** - Another mutant from Marvel Comics, she can create teleportation portals and has been a member of various superhero teams.
Apu Nahasapeemapetilon is a fictional character from the animated television series "The Simpsons." He is an Indian immigrant who owns and operates the Kwik-E-Mart, a convenience store in the fictional town of Springfield. Apu is characterized by his thick accent, friendly demeanor, and hardworking nature. He is a father of octuplets and is married to Manjula.
Leo Fitz is a fictional character from the television series "Marvel's Agents of S.H.I.E.L.D.," which is part of the Marvel Cinematic Universe (MCU). Portrayed by actor Iain De Caestecker, Leo Fitz is a brilliant engineer and scientist. He is known for his expertise in technology and engineering, often working closely with his colleague Jemma Simmons, with whom he shares a close personal relationship.
A magnet motor typically refers to a type of motor that ostensibly utilizes permanent magnets to produce motion and generate energy. While the term can be associated with various designs and concepts, many magnet motors operate under the principle of using magnetic fields to create rotational movement without the need for external energy sources. There are a few key points to note regarding magnet motors: 1. **Perpetual Motion Claims**: Many magnet motor designs claim to provide perpetual motion, which would violate the laws of thermodynamics.
The Force is a central concept in the "Star Wars" franchise, serving as a mystical energy field that connects all living things in the galaxy. It is described as an energy that can be tapped into by individuals, particularly those who are sensitive to it, such as the Jedi and the Sith. The Force has a Light Side and a Dark Side.
An extensometer is an electronic or mechanical device used to measure the extension or deformation of a material or specimen under load. It is commonly employed in material testing, structural monitoring, and other applications where precise measurements of displacement or strain are required. Extensometers can be used in various settings, including laboratories and field environments, and can measure elongation, compression, or changes in diameter.
The four-point flexural test is a mechanical testing method used to evaluate the flexural strength and flexural modulus of materials, primarily in the fields of materials science, engineering, and structural testing. This test measures how a material behaves under bending loads. ### Test Setup: - In a four-point flexural test, a specimen (usually a beam or a rectangular piece of material) is supported at two points located towards the ends of the specimen.
Algebraic number theory is a branch of mathematics that studies the properties of numbers in the context of algebraic structures, particularly focusing on the algebraic properties of integers, rational numbers, and their extensions. It combines elements of both number theory and abstract algebra, particularly through the study of number fields and their rings of integers. Key concepts in algebraic number theory include: 1. **Number Fields**: These are finite degree extensions of the field of rational numbers (ℚ).
In algebra, particularly in the context of field theory and ring theory, the characteristic of a ring or field is a fundamental concept that essentially describes how many times you can add the identity element to itself before reaching the additive identity (zero).
A formally real field is a type of field in mathematics that adheres to certain properties regarding sums of squares. Specifically, a field \( K \) is said to be formally real if it does not contain any non-negative elements that cannot be expressed as a sum of squares of elements from \( K \).
The Fundamental Theorem of Algebra states that every non-constant polynomial equation of degree \( n \) with complex coefficients has exactly \( n \) roots in the complex number system, counting multiplicities.
Indentation plastometry is a technique used to measure the mechanical properties of materials, specifically their flow behavior and plasticity. This method involves applying a controlled force to a sharp indenter that penetrates the material's surface, creating an impression. By analyzing the depth and characteristics of the indentation, researchers can infer important information about the material's yield strength, hardening behavior, and other mechanical properties.
A light booth, often referred to as a light box or viewing booth, is a specialized environment designed for evaluating the color, brightness, and appearance of materials or products under controlled lighting conditions. Light booths are commonly used in industries such as printing, textiles, automotive, and design to ensure color consistency and quality.

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 5. . 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.
  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