It seems like there might be a small mix-up in the name. You might be referring to Sergei Prokofiev, a famous Russian composer, pianist, and musical writer of the 20th century. Prokofiev is known for his significant contributions to classical music, including symphonies, concertos, operas, ballets, and film music.
An astro-comb is a sophisticated astronomical instrument that combines the functions of an optical frequency comb and a spectrograph. It is designed to create highly accurate and precise measurements of the spectrum of light from astronomical objects. Optical frequency combs produce a series of evenly spaced, discrete frequency lines (or modes) that can be used as a ruler for measuring optical frequencies with extraordinary precision.
William de Wiveleslie Abney (1847–1932) was a British chemist and photographer known for his significant contributions to the field of photography, particularly in the study of light and color. He is best known for his work on photographic processes and the development of the "Abney method" of measuring the color and quality of light.
Applied Spectroscopy is a peer-reviewed scientific journal that focuses on the field of spectroscopy, which is the study of the interaction between matter and electromagnetic radiation. The journal covers a wide range of topics related to various spectroscopic techniques, including but not limited to infrared, ultraviolet-visible, nuclear magnetic resonance (NMR), mass spectrometry, and Raman spectroscopy.
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy is a scientific journal that focuses on the field of spectroscopy, particularly related to molecules and biomolecules. The journal publishes original research articles, reviews, and other types of scholarly content that explore various spectroscopic techniques and their applications in a wide range of scientific disciplines, including chemistry, biochemistry, and materials science.
The depolarization ratio is a term commonly used in the fields of optics, atmospheric science, and remote sensing to describe the degree of light polarization change after scattering, particularly in relation to particles or aerosols in the atmosphere. It is defined as the ratio of the intensity of the scattered light that is polarized to the intensity of the light that is unpolarized or the total intensity of the light.
A biexciton is a quantum mechanical state that consists of two excitons. An exciton is a bound state of an electron and a hole (the absence of an electron) in a semiconductor or insulator. When an electron in a semiconductor absorbs energy (such as from a photon), it can be excited from the valence band to the conduction band, leaving behind a hole in the valence band. The electron and hole can then interact through electrostatic attraction, forming an exciton.
Bipolar magnetic semiconductors are a class of materials that exhibit both magnetic properties and semiconductor characteristics. These materials can conduct electricity like traditional semiconductors while also displaying magnetic ordering, which is typically associated with ferromagnetic or antiferromagnetic behavior. The term "bipolar" in this context often refers to the ability of the semiconductor to support both types of charge carriers: electrons (negative charge carriers) and holes (positive charge carriers).
Flux pumping is a phenomenon that occurs in superconductors and is related to the movement of magnetic flux lines through a superconductor when it is in a state of persistent current. This phenomenon is particularly relevant in the study of type-II superconductors, which allow magnetic flux to penetrate their surface while still maintaining zero electrical resistance. In type-II superconductors, when exposed to an external magnetic field, the material allows magnetic flux to enter in discrete quantized units known as fluxoids or magnetic vortices.
Happy Alchemy can refer to different concepts depending on the context. Generally, it is associated with the idea of transforming emotions, thoughts, or situations into something positive or uplifting—essentially 'alchemy' in an emotional or psychological sense. This might involve practices related to personal development, mental wellness, or spiritual growth, focusing on cultivating happiness and well-being. In some contexts, it could be a name of a specific program, book, or organization focused on these transformative practices.
A manifold is a mathematical space that, in a small neighborhood around each point, resembles Euclidean space. Manifolds allow for the generalization of concepts from calculus and geometry to more abstract settings. ### Key Characteristics of Manifolds: 1. **Locally Euclidean**: Each point in a manifold has a neighborhood that is homeomorphic (topologically equivalent) to an open subset of Euclidean space \( \mathbb{R}^n \).
A "list of speeches" typically refers to a compilation of notable speeches delivered by various individuals throughout history, across different contexts such as politics, civil rights, literature, entertainment, and more. These speeches can be memorable for their rhetoric, impact, historical significance, or inspirational content. Such lists may include: 1. **Political Speeches**: Famous speeches by politicians, such as Martin Luther King Jr.
The term "anti-twister mechanism" is often associated with various types of mechanical or engineering systems designed to counteract or prevent twisting motions that could lead to structural failure or inefficiency.
The Dirac equation in curved spacetime is an extension of the Dirac equation, which originally describes the behavior of spin-1/2 particles (like electrons) in flat spacetime, to a general curved spacetime described by general relativity. The original Dirac equation incorporates quantum mechanics and special relativity but does not take into account the effects of gravity.
The Quantum Spin Hall (QSH) effect is a topological phase of matter characterized by the presence of edge states that conduct electricity without dissipation, while the bulk of the material remains insulating. It is a two-dimensional analogue of the three-dimensional Quantum Hall effect, but it occurs without the necessity of an external magnetic field.
The "plate trick" typically refers to a clever method used in various settings, often involving the use of plates or similar objects to demonstrate principles in science or to perform magic tricks. However, the term can also refer to different phenomena depending on the context, such as an optical illusion, a physics demonstration, or a magic performance.
"Sinhalese physicists" likely refers to physicists who are of Sinhalese ethnic background, primarily from Sri Lanka. The Sinhalese are the largest ethnic group in Sri Lanka and have contributed to various fields, including science and academia.
A **magnetic semiconductor** is a class of materials that exhibits both semiconductor properties and magnetic order. These materials can carry electric current like conventional semiconductors (such as silicon) and can also exhibit ferromagnetism or antiferromagnetism at certain temperatures, making them useful in a variety of applications that take advantage of both their electronic and magnetic characteristics.
C. J. Eliezer is a prominent figure known for his work in the field of artificial intelligence, particularly in relation to AI alignment, machine learning, and ethical considerations surrounding advanced AI systems. He is a researcher and has been involved in various discussions and initiatives aimed at ensuring that AI technologies are developed and deployed in ways that are safe, beneficial, and aligned with human values.
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!
Intro to OurBigBook
. Source. We have two killer features:
- 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-calculusArticles 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/derivativeVideo 2. OurBigBook Web topics demo. Source. - 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.
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
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. - Infinitely deep tables of contents:
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





