Used to identify organic compounds.
Seems to be based on the effects that electrons around the nuclei (shielding electrons) have on the outcome of NMR.
So it is a bit unlike MRI where you are interested in the position of certain nuclei in space (of course, these being atoms, you can't see their positions in space).
The Whittaker model, often referred to in various contexts, primarily pertains to mathematical and statistical modeling in different fields, such as ecology, finance, and natural sciences. However, one of the more prominent references is the Whittaker model in the context of population dynamics and ecology. ### Whittaker's Classification of Plant Communities: In ecology, the Whittaker model refers to a classification system developed by the ecologist Robert Whittaker in the 1950s.
A weapons-grade ring of electrorefined plutonium, typical of the rings refined at Los Alamos and sent to Rocky Flats for fabrication
. Source. The ring has a purity of 99.96%, weighs 5.3 kg, and is approx 11 cm in diameter. It is enough plutonium for one bomb core. Which city shall we blow up today?Ciro Santilli is mildly obsessed by nuclear reactions, because they are so quirky. How can a little ball destroy a city? How can putting too much of it together produce criticality and kill people like in the Slotin accident or the Tokaimura criticality accident. It is mind blowing really.
More fun nuclear stuff to watch:
- Dr. Strangelove (1964)
- en.wikipedia.org/wiki/Chernobyl_(miniseries)
- The World Of Enrico Fermi by Harvard Project Physics (1970)
- Fat Man and Little Boy (1987) shows a possibly reasonably realistic of the history of the development of the Trinity
The Ultimate Guide to Nuclear Weapons by hypohystericalhistory (2022)
Source. Good overall summary. Some interesting points:- youtu.be/8uIPQBOCJ64?t=2946 talks about the difference between tactical and strategic nuclear weapons
- youtu.be/8uIPQBOCJ64?t=3291 mentions variable yield devices, this is the main new thing Ciro Santilli learned from this video
- youtu.be/8uIPQBOCJ64?t=3416 discusses if a strategic nuclear weapon usage would inevitably lead to tactical nuclear weapon escalation. It then mentions one case in which a possibly comparable escalation didn't happen: the abstinence of using chemical weapon during World War II.
Historic, unique Manhattan Project footage from Los Alamos by Los Alamos National Lab
. Source. Mostly the daily life part of things, but very good, includes subtitles explaining the people and places shown.
Marked with identifier "LA-UR 11-4449".
The term "Jewish American physicists" refers to physicists in the United States who are of Jewish heritage or descent. This group includes many notable scientists who have made significant contributions to various fields of physics, including theoretical physics, experimental physics, and applied physics.
The term "generatrix" can have different meanings depending on the context in which it is used: 1. **Mathematics and Geometry**: In geometry, a generatrix is a curve or line that generates a geometric surface or solid through motion. For example, when a straight line (the generatrix) moves along a path (the directrix), it can create shapes such as cylinders, cones, or other solids. The generatrix is crucial in the definition of various three-dimensional shapes.
Prefuse is an open-source software framework designed for the visualization and exploration of large datasets, primarily geared towards data analysis and information visualization. It was developed by Jeffrey Heer, a prominent figure in the field of information visualization, and is based on Java. Prefuse provides a rich set of visualization techniques and tools, enabling users to create various types of visual representations, such as graphs, trees, and other relational structures.
The term "social genome" typically refers to the complex interplay of social factors, behaviors, and characteristics that shape individual and collective social experiences. While it can vary based on context, it often encompasses elements such as social networks, relationships, cultural influences, and the impact of socioeconomic status on behavior and outcomes in society.
The Starlight Information Visualization System is a software tool designed to help users visualize and analyze complex datasets. It's particularly useful in fields such as bioinformatics, social network analysis, and financial analysis, where large amounts of multidimensional data can be challenging to interpret. Starlight employs various visualization techniques, including graphical representations like graphs, charts, and interactive dashboards, enabling users to observe patterns, relationships, and trends in their data.
VisAD (Visualization for Algorithm Development) is a software system designed for interactive visualization and analysis of scientific data. Developed primarily to support the visualization of multidimensional data, VisAD enables users to create graphical representations of complex datasets, making it easier to analyze and interpret scientific information. Key features of VisAD include: 1. **Multidimensional Data**: It supports various data types and dimensions, allowing scientists to visualize data across multiple variables and time dimensions.
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






