The Jessica Mydek hoax letter refers to a fraudulent correspondence that circulated online, in which a fictional character named Jessica Mydek supposedly wrote a letter describing her experiences and challenges. This letter gained attention for its emotional content and dramatic narrative, leading many readers to believe it was a genuine account. The letter was eventually revealed to be a hoax, prompting discussions about the dangers of misinformation, the impact of fake narratives online, and the importance of critical thinking when consuming content on the internet.
As of my last knowledge update in October 2021, there is no widely recognized public figure or entity by the name "Lilian Brandt." It is possible that Lilian Brandt may refer to a private individual, a lesser-known personality, or a brand that has emerged after that date.
Terrell rotation by Ciro Santilli 40 Updated 2025-07-16
What you would see the moving rod look like on a photo of a length contraction experiment, as opposed as using two locally measured separate spacetime events to measure its length.
A virus hoax is a false or misleading claim about a computer virus, worm, or other types of malware that spreads through communication channels like email or social media. These hoaxes typically warn users about an imminent threat, often exaggerating the dangers or claiming that simply reading a message could infect their computer. Common elements of virus hoaxes include: 1. **False Claims**: They often provide alarming details about a virus that does not actually exist or has been exaggerated.
The Struve-Sahade effect refers to an astrophysical phenomenon that occurs in certain binary star systems, particularly in cases where one of the stars is a giant star. It describes the observational changes in the spectra of the components of the binary system due to the presence of the giant star's extended atmosphere, which can influence the absorption lines seen in the spectrum.
An empirical process refers to a statistical method or framework that is based on observed data rather than theoretical models or assumptions. It encompasses a wide range of techniques used to analyze, model, and infer properties from data collected through experiments or observations. The main characteristics of empirical processes include: 1. **Data-Driven**: Empirical processes rely heavily on actual data collected from real-world observations or experiments. This data serves as the foundation for analysis and conclusions.
Simics is a powerful full-system simulator developed by Wind River Systems. It allows developers and engineers to simulate complete computer systems, including hardware and software components, which enables various applications in system development and testing.
Virtutech is a company that specializes in virtualization and simulation technologies, particularly in the field of embedded systems and software development. It is well-known for its software products that allow developers to simulate complex hardware environments, enabling them to test and debug applications without needing access to the physical hardware. Their products, like the Simics simulation platform, provide a high-fidelity representation of hardware systems, allowing for advanced debugging, testing, and development capabilities.
RISC OS emulators are software applications that allow users to run the RISC OS operating system on non-native hardware, such as Windows, macOS, or Linux machines. RISC OS is a 32-bit operating system originally designed by Acorn Computers for their ARM-based computers, and it features a graphical user interface and various built-in applications. Emulators replicate the behavior of the RISC OS environment, enabling users to run RISC OS programs and applications without needing the original ARM hardware.
"Vehicles by fuel" typically refers to the categorization of vehicles based on the type of fuel they use for propulsion. This categorization helps in understanding the environmental impact, regulatory considerations, and market trends associated with different types of vehicles. Here's an overview of common vehicle types by fuel: 1. **Gasoline Vehicles**: These use gasoline as fuel and are among the most common types of vehicles. They typically have internal combustion engines.
Engineering disciplines refer to the various specialized fields within the broader field of engineering, each focusing on different aspects of technology, design, construction, and problem-solving. Here are some of the main engineering disciplines: 1. **Civil Engineering:** This discipline deals with the design, construction, and maintenance of infrastructure such as bridges, roads, buildings, and water supply systems.
EcoCAR is a vehicle engineering competition primarily focused on advanced vehicle technologies and sustainable transportation. It is organized by the U.S. Department of Energy (DOE) and is part of the Advanced Vehicle Technology Competitions (AVTCs). The competition challenges university students to develop innovative, eco-friendly vehicles that reduce environmental impact while maintaining performance, safety, and consumer appeal. Over several years, student teams work on vehicle design, integrating alternative powertrains, energy-efficient technologies, and smart vehicle systems.
An air-fuel ratio meter is a device used to measure the proportion of air to fuel in an internal combustion engine. The air-fuel ratio (AFR) is a critical parameter for optimizing engine performance, fuel efficiency, and emissions. In typical gasoline engines, the ideal stoichiometric air-fuel ratio is around 14.7:1, meaning 14.7 parts of air to 1 part of fuel by mass.
The DAPPLE Project (Data-driven Approval Processes for Learning Environments) is an initiative aimed at improving education through data analysis and evidence-based decision-making. While specific details may vary, the project typically focuses on the collection, analysis, and application of data to enhance the effectiveness of educational settings and processes. DAPPLE projects often involve collaboration among educational institutions, researchers, and stakeholders to identify best practices and develop tools that facilitate better learning outcomes.
The UK Energy Research Centre (UKERC) is a leading research organization in the United Kingdom focused on energy-related research and policy. Established in 2004, UKERC aims to provide integrated and independent research that addresses the challenges of energy supply, demand, and sustainability in the context of climate change and the transition to a low-carbon economy.
An equation of state (EOS) is a mathematical relationship that describes the state of a physical system by relating its macroscopic properties, such as pressure, volume, temperature, and number of particles. Equations of state are crucial for understanding and predicting the behavior of materials under various conditions, particularly in thermodynamics, fluid dynamics, and materials science.
Automobile engines are complex machines that convert fuel into mechanical energy to power vehicles. They are typically internal combustion engines (ICE), which means they burn fuel—such as gasoline or diesel—to create combustion within cylinders. The resulting explosions push pistons connected to a crankshaft, which converts the linear motion into rotational motion, ultimately driving the vehicle's wheels.

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