Directory
Published directory entries matching your search.
eBook Converter Bot is a Telegram bot that converts e-books between formats for free, operating since 2022. It supports 57 input formats and 31 output formats. Users launch the bot through Telegram to start a conversion.
eCalc provides simulation tools for electric drives, including calculators for airplane propellers, multirotors, helicopters, EDF jets, and electric cars. The site lists a motor database and a restricted free demo version with reduced functionality and partial database access. It has been presented as offering reliable predictions since 2004.
edX is an online learning platform that provides courses, certificates, and degree programs delivered by leading global institutions including Harvard, Google, and Amazon. It serves a global community of learners, offering flexible, hybrid, and 100% online learning paths across diverse subject areas such as artificial intelligence, business, and data science. Users can register for a free account to access offerings.
Ekvis is an educational website offering quiz games for learning geography and languages. It describes itself as a low-profit philanthropic project with interactive map games covering countries, capitals, flags and regions. Games are free to play, require no registration and collect no personal information; the site says it is intended for individual and classroom use.
ElevenReader is a free text read-aloud application. It can read aloud PDFs, eBooks, Kindle content and web articles, provides access to over 200,000 audiobooks, and offers 1000+ natural-sounding voices in 90+ languages, supporting file upload and link input for reading.
EMCrit is a blog and podcast covering emergency department critical care, trauma, and resuscitation for medical education. It publishes episodes and posts on topics such as procedural sedation, hemodialysis catheters, and sepsis research.
En Croissant is an open-source, cross-platform chess GUI. It serves as a chess database and analysis tool, and is designed to have a user experience closer to online chess websites while offering desktop application features. It provides game analysis reports, a database system for managing games, and an opening explorer for repertoire preparation.
Encyclopedia Mythica is an internet encyclopedia on mythology, folklore and religion, stating it has been online since 1995. It offers search across its articles and sections covering regions including the Americas, Asia, Europe, the Middle East and Oceania, with popular areas such as Greek, Roman, Norse, Arthurian and Māori mythology.
The Energia-Buran Archive is an archive and directory of images from the Buran program, created for educational purposes. It organizes photographs of Buran orbiters, the Energia rocket, Polyus, Energia-M, the An-225 Mriya, the VM-T Atlant, Baikonur facilities, testing and research, and other spaceplanes, along with documents and illustrations.
Engineers Edge is an engineering reference site offering calculators, charts and tools for structural, mechanical and design work. It includes beam and stress calculators, fastener and bolt design resources, flat plate deflection equations, and applications such as a 2D statics modeler, GD&T writer and gear builder. Premium design and engineering spreadsheets require an annual membership.
A searchable archive of public Epstein-related documents, including court filings, flight logs, depositions and the black book. It uses AI to extract people, organizations and locations mentioned in the documents and maps their connections in a network visualization.
Erowid is a non-profit educational and harm-reduction resource with a large online library about psychoactive drugs, plants, chemicals and technologies. It documents traditional, spiritual and responsible use, and covers health, effects, experiences, research, chemistry, law and media coverage.
ESA Webb Telescope is the official European Space Agency X feed for the James Webb Space Telescope, an international partnership between NASA, ESA and CSA. It uses the hashtags #WebbSeesFarther and #BFFinSpace with @Hubble_Space.
A free Windows application for Bible study that provides Bibles, commentaries, dictionaries and other resources, with search functions including search by Strong's numbers. It includes a built-in editor for sermons, Bible studies, notes and journaling. Versions are also available for Android, Mac, iPad and iPhone.
Evan Chen's homepage collects course notes, olympiad materials, writings and a CV. The site states that Evan completed a number theory PhD at MIT and coaches math olympiads, and it links to handouts, past problems and solutions for high school students.
EveryPolitician is a global database of political office-holders, including rulers, law-makers, judges and other public officials. It tracks hundreds of thousands of politicians across countries, positions and territories, and is built on Wikidata. The project describes itself as a community effort built by volunteers and welcomes contributions to political data research.
An ARRL search page for finding in-person or remote video online amateur radio license exam sessions. It also lists upcoming sessions for other organizations not affiliated with ARRL, and the sponsoring organization is shown on the VEC line. Exam candidates are required to register in the FCC CORES system and receive an FCC Registration Number before exam day.
The Ex-Classics Web Site is a project founded in 2000 to make out-of-print works available online for reading and downloading. It offers author, subject and title indexes, a Book of the Month feature, and states that the site and its contents are public domain.
A service of the NASA Exoplanet Science Institute that hosts data on confirmed planets and candidates, including TESS, Kepler/K2 and JWST products. It provides search and query tools, mission data holdings, and AstroFetch, an AI assistant that answers natural-language questions using archive data.
Exoplanets Explore is an interactive data visualisation about exoplanets by TK Vishal. It includes an analysis report, planet names with discovery methods, and comparisons of features such as the largest and smallest known planets.
A wiki that provides explanations for xkcd comics. It states that it has an explanation for all 3311 xkcd comics, the 21 extra comics, and xkcd-related material, and notes that 53 explanations are incomplete.
Exploitee.rs is a hardware security research collective that finds vulnerabilities in embedded devices, IoT products and mobile systems. It lists research areas including IoT security, entertainment systems, home automation and mobile security, and offers breakout boards, a Hacker Pager and a shop of hardware security tools.
A searchable archive of Epstein files released by the U.S. Department of Justice and the House Oversight Committee. It covers documents, emails, flight records, money transfers, photos, videos and audio, with pages for people, organizations and places named in 20 or more files.
Extreme Weather Watch is a site founded in 2021 that provides an interface for viewing historical weather records. It offers climate records by U.S. state, Canadian province, Australian state and other countries, plus country and city comparisons and temperature conversion calculators.
