The International Max Planck Research School for Ultrafast Imaging and Structural Dynamics (IMPRS-Ultrafast) is a collaborative graduate program focused on advanced research in the fields of ultrafast science, imaging, and structural dynamics. It is affiliated with the Max Planck Society, specifically looking to train a new generation of researchers equipped to advance our understanding of processes that occur on extremely short timescales and at the atomic or molecular level.
SuperB is a proposed next-generation particle physics experiment focused on studying B mesons, which are hadrons containing a bottom quark. The primary goal of the SuperB project is to explore phenomena related to Charge Parity (CP) violation, which could provide insights into the differences between matter and antimatter, potentially shedding light on why our universe is predominantly made of matter.
TJ-II is a type of experimental nuclear fusion reactor known as a stellarator. It is located at the Complutense University of Madrid in Spain and is part of the National Fusion Laboratory (Laboratorio Nacional de Fusión). The TJ-II is specifically designed to study plasma behavior in a laboratory setting, with the goal of advancing our understanding of key physical processes relevant to nuclear fusion.
Impact depth generally refers to the depth of penetration or the degree to which an object impacts or affects another object or a surface upon collision or contact. The term can be used in various contexts, including physics, geology, and engineering, and its specific definition can vary depending on the field of study.
Rocket weapons are a category of weaponry that utilize rockets as their means of propulsion. Unlike traditional firearms that use gunpowder to propel a projectile, rockets utilize propulsion systems that operate on the principle of thrust generated by the expulsion of gas from a combustion process. Rocket weapons can be classified into several types, including: 1. **Rockets (Unguided)**: These are simple rockets that can be fired from ground launchers or aircraft.
As of my last update in October 2023, "Atlas G" could refer to various concepts depending on the context. It might relate to a product name, a technology, a fictional character, or something else entirely. However, without more specific details, it's challenging to provide an accurate answer.
Battleship in the context of rocketry typically refers to a type of launch vehicle or missile system that is designed for military use, particularly for delivering payloads such as satellites or nuclear weapons. However, the term is not widely used in officially documented rocketry, and it may sometimes be used informally to describe large, powerful rockets or the strategic application of rocketry in military contexts.
Condensation polymers are a class of polymers formed through a condensation reaction, where monomer units are linked together, resulting in the release of small molecules, such as water, alcohol, or other simple molecules. This process typically involves the reaction of two different functional groups, such as -OH (hydroxyl) and -NH2 (amine), or -COOH (carboxylic acid) and -OH.
The problem with a single-level paging scheme is that it would take up too much RAM: 4G / 4K = 1M entries per process.
If each entry is 4 bytes long, that would make 4M per process, which is too much even for a desktop computer: ps -A | wc -l says that I am running 244 processes right now, so that would take around 1GB of my RAM!
For this reason, x86 developers decided to use a multi-level scheme that reduces RAM usage.
The downside of this system is that is has a slightly higher access time, as we need to access RAM more times for each translation.
The Linux kernel makes extensive usage of the paging features of x86 to allow fast process switches with small data fragmentation.
There are also however some features that the Linux kernel might not use, either because they are only for backwards compatibility, or because the Linux devs didn't feel it was worth it yet.
Besides a missing page, a very common source of page faults is copy-on-write (COW).
Page tables have extra flags that allow the OS to mark a page a read-only.
Those page faults only happen when a process tries to write to the page, and not read from it.
When Linux forks a process:
  • instead of copying all the pages, which is unnecessarily costly, it makes the page tables of the two process point to the same physical address.
  • it marks those linear addresses as read-only
  • whenever one of the processes tries to write to a page, the makes a copy of the physical memory, and updates the pages of the two process to point to the two different physical addresses
Equivalent carbon content (often abbreviated as ECC or sometimes represented as C_eq) is a concept used primarily in materials science and metallurgy, particularly in the context of steel and alloy production. It provides a way to quantify the effect of various alloying elements on the hardness, strength, and weldability of steel.
Pipe drift generally refers to the phenomenon where the alignment or position of pipes, particularly in industrial settings, becomes misaligned or 'drifts' from their intended placement over time. This can happen due to a variety of factors, including: 1. **Thermal Expansion and Contraction**: Changes in temperature can cause pipes to expand or contract, resulting in shifts from their original position.
A pipefitter is a skilled tradesperson who specializes in the installation, maintenance, and repair of piping systems that carry various liquids, gases, and other substances. These systems can be found in a variety of settings, including residential, commercial, and industrial environments.

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