Transparent wood composite is an innovative material that combines the properties of wood and transparency, achieved through a series of processes that modify the natural structure of wood. This composite material has gained attention for its potential applications in areas such as construction, renewable energy, and optical devices. The process typically involves the following steps: 1. **Delignification**: The natural lignin present in wood, which gives it color and opacity, is removed chemically or through a series of treatments.
The term "chameleon particle" is used in theoretical physics to describe a hypothetical type of particle that could explain certain phenomena related to dark energy and the accelerated expansion of the universe. The concept arises primarily within the context of modified gravity theories and scalar field theories. Chameleon particles are characterized by their unique property of changing their mass depending on the local density of matter.
Exotic matter is a hypothetical form of matter that possesses properties not found in the ordinary matter that makes up the universe. It is often discussed in the context of advanced theoretical physics, particularly in areas like cosmology and theoretical constructs such as wormholes and warp drives. Some of the notable characteristics and possibilities associated with exotic matter include: 1. **Negative Mass or Negative Energy Density**: Exotic matter may have negative mass, meaning that it would behave in ways that defy our conventional understanding of physics.
The Kodama state is a specific type of quantum entanglement associated with certain kinds of quantum systems, particularly in the context of condensed matter physics and quantum information. It is named after the physicist S. Kodama, who studied its properties. In general terms, the Kodama state can refer to a state in which quantum entanglement plays a crucial role, often leading to intriguing phenomena such as topological order or emergent properties in many-body systems.
The term "630 mm artillery" typically refers to a type of large-caliber artillery piece designed to fire projectiles at a significant distance. The specific designation "630 mm" indicates the caliber of the artillery, meaning the diameter of the barrel and thus the diameter of the shells fired.
Lego people, commonly referred to as "Lego minifigures," are small, articulated figures that are part of the Lego building system. These figures are typically made of plastic and are designed to represent various characters, including people, animals, and fictional beings, across a wide range of themes such as superheroes, pirates, astronauts, and everyday occupations. Minifigures usually have interchangeable parts, such as heads, bodies, and accessories, allowing for customization and creativity.
The LEGO timeline reflects the history and development of the LEGO Group and its iconic building blocks, starting from its inception. Here's a brief overview of significant milestones in the LEGO timeline: 1. **1932**: The LEGO company was founded by Ole Kirk Christiansen in Billund, Denmark, as a small carpenter's workshop producing wooden toys. 2. **1949**: The first plastic toys were produced, including a precursor to the modern LEGO brick called "Automatic Binding Bricks.
"The Art of the Brick" is a traveling art exhibition created by artist Nathan Sawaya, who is known for his unique use of LEGO bricks to create large-scale sculptures and installations. The exhibition showcases a variety of works, including intricate sculptures, life-sized figures, and abstract pieces, all made from standard LEGO pieces. Since its inception in 2007, "The Art of the Brick" has toured various cities around the world, attracting LEGO enthusiasts, art lovers, and families alike.
American Girl is a brand of dolls, books, and accessories that focuses on historical and contemporary stories aimed at children. It was founded in 1986 by Pleasant Company, which was later purchased by Mattel, Inc. in 1998. The brand is best known for its "American Girl Dolls," each of which represents a specific historical era, culture, or contemporary theme.
Cicciobello is a popular Italian doll brand, often referred to as a "baby doll." Designed for children, Cicciobello dolls are known for their realistic features, including soft bodies, expressive faces, and lifelike accessories that mimic real baby behaviors. The dolls typically come with various outfits and care accessories, allowing children to engage in imaginative play by role-playing as caregivers.
Monster High is a multimedia franchise created by Mattel that debuted in 2010. It primarily targets children and preteens, featuring a doll line, a web series, books, and an animated television series. The franchise is centered around the lives of teenage children of famous monsters and mythological creatures, including characters inspired by iconic horror figures such as Dracula, Frankenstein, and mummy mythology.
"My Child" can refer to different concepts depending on the context in which it is used: 1. **Parental Reference**: It often simply refers to one's own offspring, emphasizing the relationship and emotional connection between a parent and their child. 2. **Literature or Media**: "My Child" may also be the title of a book, song, or film that explores themes related to parenting, childhood, or family dynamics.
Peppermint Rose is a term that can refer to a few different things, often related to plants or aesthetics. Here are the most common meanings: 1. **Plant Variety**: Peppermint Rose may refer to a type of rose plant that has a fragrance reminiscent of peppermint. Such varieties may have unique color patterns or scents.
Sasha Morgenthaler refers to a notable figure in the field of art education and illustration, known for her contributions to the creative community, particularly in areas involving children's literature and illustrative storytelling.
Hans Völk Dolls is a brand known for its high-quality, handcrafted dolls, particularly for collectors and those interested in traditional doll-making. The company focuses on creating dolls that often reflect historical or cultural themes, showcasing intricate details and artistry. Hans Völk is recognized for his commitment to craftsmanship, using traditional methods and materials to produce dolls that appeal to collectors of all ages. The dolls can feature lifelike expressions, realistic clothing, and are often made from porcelain, cloth, or other materials.
Simon & Halbig refers to a historical German porcelain manufacturing company founded in the late 19th century, especially known for producing doll heads and figures. The factory was established by partners (and friends) Friedrich Simon and William Halbig in the town of Georgenthal, Thuringia, an area renowned for its porcelain production. The company gained prominence for its high-quality porcelain dolls, particularly in the late 1800s and early 1900s.
Dolls House Emporium is a retailer that specializes in miniature products, particularly dolls' houses, furniture, and accessories. Founded in the UK, the company caters to both hobbyists and collectors who engage in the art of creating and decorating miniature environments. They offer a wide range of products, including completed dolls' houses, DIY kits, miniature furniture, decor items, and even supplies for building and customizing models.
Young V&A is a branch of the Victoria and Albert Museum (V&A) in London, designed specifically for children and families. It focuses on engaging younger audiences with arts, design, and culture through interactive exhibits, workshops, and educational programs. The Young V&A aims to inspire creativity and provide a space where children can explore, play, and learn about various forms of art and design.
The Hijarbie Doll is a custom doll inspired by the popular Barbie brand, designed to represent and celebrate Muslim culture, particularly the hijab-wearing community. Created by Nigerian artist Haneefah Adam, Hijarbie is a culturally relevant doll that showcases a fashionable Muslim girl who wears a hijab and modest clothing. The Hijarbie Doll aims to provide representation for Muslim children and encourage inclusivity in the toy industry by offering a positive role model for young girls who observe hijab.
Sarubobo is a traditional Japanese doll that originates from the Takayama region in the Gifu Prefecture. It is typically made from cloth and is characterized by its simplistic design: it has no facial features, a round head, and a body that often resembles a small human figure. Sarubobo dolls are usually made in various colors, each representing different meanings or blessings.

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