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Atomic Data for Astrophysics is a resource that provides atomic data for astrophysics research. It covers topics including photoionization, recombination, collisional ionization and autoionization, charge transfer, Auger processes, energy levels, transition probabilities, collision strengths, and Stark broadening. It also offers related Fortran subroutines and links to other atomic and plasma physics databases.
A compilation of approximately 923,000 allowed, intercombination and forbidden atomic transitions with wavelengths from 0.5 Å to 1000 µm. Wavelengths are calculated from energy-level differences rather than observed values. Its primary intention is to allow identification of observed atomic absorption or emission features, using a selection tool that applies wavelength and other criteria. Most energy level data come from the NIST Atomic Spectra Database.
Atom Animation is an educational resource for documentaries, courses, books, reference material, or self-learning.
Atom Animation is a GitHub repository or organization with source code, releases, documentation, or project resources.
Atomic is an educational resource for learning science, history, language, geography, or general knowledge.
The Atomic & Molecular Database at the Institute of Applied Physics and Computational Mathematics collects, assesses and compiles atomic and molecular data for elementary processes, particularly data used in plasma simulation and diagnosis. It holds more than 2.7 million records and includes an ionization potentials and levels index and a periodic table selector. The molecular database is under construction.
Atomic Chat is an open-source local AI chat client that runs Gemma, Qwen, DeepSeek and other AI models on the user's device. It offers desktop downloads for macOS, Windows and Linux and mobile apps for iOS and Android, and states that data stays on the device without a cloud account or subscription.
A NIST bibliographic database that contains references to publications including numerical data, general information, comments and reviews on atomic line broadening and shifts. It is part of the collection of the NIST Atomic Spectroscopy Group.
Source code for Brief, a Firefox extension for reading RSS and Atom feeds. The repository links to the published add-on, documentation, and project support channels.
anti atom aktuell is a magazine publishing features, commentary and specialist editorial coverage.
AtomCentral is dedicated to the restoration and preservation of US Atomic and Nuclear Test footage. It is a division of VCE Films and offers footage and productions content along with licensing.
AtomDB is an astrophysical plasma emission database providing atomic data for modeling X-ray spectra. It includes ionization and recombination rates, energy levels, wavelength and Einstein A values, electron and proton collision data, and density-sensitive line diagnostics for plasma modeling.
CHIANTI is an atomic database for spectroscopic diagnostics of astrophysical plasmas, combining a critically evaluated set of up-to-date atomic data with programs in Interactive Data Language (IDL) and Python to calculate plasma spectra. The package is freely available, with a request to appropriately acknowledge CHIANTI when used.
A 3D visualization of the periodic table with a table view shown initially and an atomic view reached by clicking each element. The atomic view uses a 2D Bohr model representation with electrons rotating in a plane.
NIST Standard Reference Database 108 is a handbook of basic atomic spectroscopic data, compiling data for neutral and singly-ionized atoms of elements hydrogen through einsteinium. Wavelengths, intensities and spectrum assignments are given in tables per element, with about 12,000 lines collected in a wavelength-sorted finding list.
Kill the Newsletter! converts email newsletters into Atom feeds. A created feed provides an email address and an Atom feed; emails received at the address become entries in the feed, which can be read in a feed reader. Entries older than one month are deleted, and some newsletter publishers block the service.
The R. L. Kurucz atomic linelist is hosted among databases maintained at the CfA. The source describes it as data from Kurucz CD-ROM 18 and 23, with links to CD-ROM 23, the CfA AMP Server and CD-ROM 18. Other Kurucz data are maintained separately by R. L. Kurucz.
Sage is a lightweight RSS and Atom feed reader extension for Mozilla Firefox. It reads RSS 2.0, 1.0, 0.9x and Atom feeds, provides customizable newspaper feed rendering via style sheets, includes feed discovery functionality, integrates with Firefox’s bookmark system, supports OPML feed list import and export, offers support for multiple locales, and has a simple one-step install and uninstall process.
WebElements presents the periodic table of the elements. The table arranges the chemical elements by atomic number so that periodic properties are made clear, and each entry gives the element's symbol, atomic weight and name.
The Internet Classics Archive provides 441 works of classical literature by 59 different authors, mainly Greco-Roman works with some Chinese and Persian, all in English translation. It has operated since 1994 and is run by Daniel C. Stevenson, Web Atomics. A copy was taken over by MIT IS&T after the classics.mit.edu site stopped responding. The site states that all works are, to its knowledge, in the public domain.
Akregator is a news feed reader for following news sites, blogs and other RSS/Atom-enabled websites without manually checking for updates in a web browser. It is designed for reading hundreds of news sources and includes a fast search, advanced archiving functionality and an internal browser. It is available on Linux and Windows.
amux is an open-source control plane for AI coding agents, hosted on GitHub by mixpeek. It enables management of parallel AI coding workers including Claude Code, Codex, and Gemini, with features such as a shared task board, atomic task assignment, scheduling, origin-stamped messaging, model switching, self-healing recovery, and access via a dashboard or mobile interface. It is MIT licensed and distributed as a single Rust binary.
Browse digitized texts, images, archives and cataloged cultural materials.
) - RSS/Atom gateway to Nostr. Live at [https://atomstr.data.haus](https://atomstr.data.haus)
