Neil Gershenfeld by Wikipedia Bot 0
Neil Gershenfeld is an American physicist, computer scientist, and educator known for his work in the field of digital fabrication and the development of the Fab Lab concept. He is a professor at the Massachusetts Institute of Technology (MIT) and the director of the Center for Bits and Atoms, where he focuses on the intersection of physical and digital technology.
Tatung Einstein by Wikipedia Bot 0
Tatung Einstein is a brand of smart home appliances and internet of things (IoT) devices that are designed to integrate advanced technology with everyday household items. The products under the Tatung Einstein brand often include items like smart rice cookers, multi-function cooking devices, and other kitchen gadgets that allow for remote monitoring and control via smartphone applications or cloud services. The focus of Tatung Einstein typically involves combining traditional cooking methods with modern technology, enhancing convenience, efficiency, and connectivity for users.
Chaffing and winnowing is an ancient agricultural process used to separate the edible grain from the inedible chaff that surrounds it. Here's a brief overview of each step: 1. **Chaffing**: This step involves the physical process of removing the grain from its protective husk or chaff. This is typically done by threshing, which can be accomplished through various methods, such as using a threshing floor where the grain is beaten or by using a threshing machine.
Cryptography is a crucial technology that provides security for data and communications, enabling various applications across multiple fields. Here are some key applications of cryptography: 1. **Secure Communications**: - **Email Encryption**: Tools like PGP (Pretty Good Privacy) and S/MIME are used to secure email content against unauthorized access. - **Messaging Apps**: Applications like Signal and WhatsApp use end-to-end encryption to protect user conversations.
Classical cryptography refers to traditional methods of encrypting and securing information before the development of modern cryptographic techniques using computers. These classical methods primarily emerged before the 20th century and often involve manual techniques for encoding messages. Here are some of the key features and common techniques associated with classical cryptography: ### Key Features: 1. **Symmetric Key Cryptography**: Most classical cryptographic methods use the same key for both encryption and decryption.
Cryptographers by Wikipedia Bot 0
Cryptographers are individuals who specialize in the study and practice of cryptography, which is the science of securing communication and information by transforming it into a format that cannot be easily understood by unauthorized individuals. Cryptography involves various techniques, including algorithms, protocols, and encryption methods, to ensure data confidentiality, integrity, authentication, and non-repudiation. Cryptographers work on designing and analyzing these algorithms and protocols to ensure they are robust against attacks.
The concepts of the beginning and end of the universe are central questions in cosmology and have intrigued scientists, philosophers, and theologians for centuries. ### The Beginning of the Universe The prevailing scientific explanation for the beginning of the universe is the **Big Bang Theory**. According to this model: - **Singularity**: The universe began about 13.8 billion years ago from an extremely hot, dense point known as a singularity.
Acoustic cleaning by Wikipedia Bot 0
Acoustic cleaning is a technology that uses sound waves, typically in the ultrasonic frequency range, to clean surfaces and remove contaminants. This method can effectively reach difficult-to-access areas and is often used in industrial settings for cleaning machinery, components, and systems. Here's how it works: ### Principles of Acoustic Cleaning: 1. **Ultrasonic Waves**: High-frequency sound waves are generated by transducers and transmitted through a cleaning medium (usually a liquid).
Cryptographic attacks refer to various methods employed to compromise cryptographic algorithms and protocols, often with the aim of gaining unauthorized access to encrypted information, manipulating data, or undermining the integrity of cryptographic systems. These attacks exploit vulnerabilities in the cryptographic algorithms, implementation flaws, or protocol weaknesses.
Promoter (genetics) by Ciro Santilli 37 Updated +Created
An acoustic harassment device, often referred to as a Long Range Acoustic Device (LRAD), is a type of sound system designed to emit high-decibel sound waves over long distances. These devices are typically used for crowd control, deterrence, and communication in situations such as protests, riots, and military operations.
The timeline of electrical and electronic engineering encompasses numerous advancements and milestones that have contributed to the field as we know it today. Here’s a brief overview of key events and developments: ### 19th Century - **1800**: Italian scientist Alessandro Volta invented the voltaic pile, the first chemical battery that could provide a steady source of electricity. - **1820**: Hans Christian Ørsted discovered that electric currents create magnetic fields, forming the basis of electromagnetism.
Acoustic metric by Wikipedia Bot 0
An acoustic metric typically refers to a quantitative measurement used to assess the characteristics of sound or acoustics in various contexts. While the term can be employed in several domains, including environmental acoustics, audio engineering, and speech analysis, its specifics can vary based on the application.
Acoustic quieting by Wikipedia Bot 0
Acoustic quieting refers to techniques and technologies that reduce or minimize unwanted sound or noise, particularly in environments where noise control is essential. This concept is widely applicable in various fields, including engineering, architecture, and audio production. In engineering and military applications, especially in the design of submarines, aircraft, and other vehicles, acoustic quieting involves reducing the noise they produce to avoid detection.
Pi by Wikipedia Bot 0
Pi (π) is a mathematical constant that represents the ratio of a circle's circumference to its diameter. It is an irrational number, meaning that it cannot be expressed as a simple fraction and has a non-repeating, non-terminating decimal representation. The value of Pi is approximately 3.14159, but it extends infinitely beyond the decimal point. Pi is widely used in mathematics, physics, engineering, and various fields that involve circular or cyclical phenomena.
The acoustic wave equation is a partial differential equation that describes the propagation of sound waves through a medium, such as air, water, or solids. It is derived from the principles of fluid dynamics and elasticity, reflecting how pressure changes propagate through a compressible medium.
Actuarial firms by Wikipedia Bot 0
Actuarial firms are specialized consulting companies that provide actuarial services, which involve the application of mathematical, statistical, and financial theories to assess risks in insurance, finance, pensions, and other sectors. Actuaries are professionals trained in this field and play a crucial role in helping organizations manage financial uncertainties by analyzing data and projecting future events.
Cryptographic hardware refers to specialized physical devices designed to perform cryptographic functions and operations securely and efficiently. These devices can be used for various purposes, including secure data encryption and decryption, key generation and management, digital signatures, secure storage, and authentication. Here are some key features and examples of cryptographic hardware: 1. **Security**: Cryptographic hardware is designed to be tamper-resistant and protect cryptographic keys and data from unauthorized access.
An Active Cavity Radiometer (ACR) is an instrument used to measure thermal radiation and is specifically designed to obtain precise measurements of the intensity of radiation from various sources. It operates based on the principle of measuring the temperature change caused by the absorption of radiation within a cavity. The essential components of an active cavity radiometer typically include: 1. **Cavity**: This is a thermally isolated chamber that absorbs incoming radiation.

Pinned article: ourbigbook/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