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ultimateelectronicsbook.com

Ultimate Electronics Book is a free, interactive book for electronics hobbyists and electrical engineering students covering practical circuit design and analysis. Its table of contents lists chapters on conceptual foundations of engineering, linear direct current electronics, and op-amps, with several further sections marked as coming soon.

Educational & Academic Books 0
ultimatewheelspin.com

Ultimate Wheel is a miscellaneous web resource for discovery, directories, archives, web culture, or useful tools.

Curated Directories 0
repositorio.unan.edu.ni

The UNAN-Managua Institutional Repository is the official institutional repository for UNAN-Managua. It offers browsing of content by year, subject, division, author and journal, advanced search functionality, and access to statistics, policies and self-archive services.

Academic & Research Search 0
uncovered.ink

Uncovered helps search books, ebooks, papers, library records, or reading archives.

Book Discovery & Databases 0
en.uncyclopedia.co

Uncyclopedia is a content-free encyclopedia that any user can edit. Its English main page lists 140 active editors and 41,442 articles. The site provides community guidelines, help resources, and links to sister projects in other languages.

Fun & Interesting 0
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unesdoc.unesco.org

Digital single entry point service for all UNESCO resources.

Academic & Research Search 0
unglue.it

Unglue.it is a site for finding and supporting free ebooks published under Creative Commons licenses in EPUB, MOBI, and PDF formats. The site states it lists over 250,000 free ebooks and offers an OPDS catalog feed for browsing them.

Ebooks & Digital Libraries 0
unisat.io

UniSat is an open-source Bitcoin browser extension wallet with tools for minting, trading, exploring and managing assets. It supports Ordinals, Runes and Alkanes, and the site also links to its ecosystem products UniScan, an explorer, and UniHexa, a liquidity market for Bitcoin-native assets.

NFTs & Marketplaces 0
wallet.uniswap.org

Uniswap Wallet is a crypto wallet for storing, sending, receiving, and using digital assets across networks.

Wallets 0
universe.unibas.ch

Research platform of the University of Basel, Switzerland.

Academic & Research Search 0
photoarchive.lib.uchicago.edu

The University of Chicago Photographic Archive provides digitized photographs from the University of Chicago Archives. More than 20,000 images of campus buildings, events, student activities and Yerkes Observatory are currently available, and the archive documents the university's history, campus development, academic programs and community life.

Academic & Research Search 0

Official website of the University of Maiduguri, presenting its faculties, colleges, centres, journals, news and events. Several sections, including affiliated colleges, postgraduate programs, distance learning, research centres and the Institute of Education, are marked as launching soon.

Academic & Research Search 0

Histology Guide is a digital platform for teaching students to identify cellular and tissue structures and how they relate to biological functions. It presents microscope slides in a virtual format for hands-on exploration of high-resolution microscopic specimens. It was developed by Robert L. Sorenson and T. Clark Brelje, and is accompanied by the Atlas of Human Histology.

Science & Mathematics 0

The University of Texas Rio Grande Valley Library is the university library for the University of Texas Rio Grande Valley. It provides services, resources, electronic resources, and research tools for the university's students, faculty, staff, and community, and offers access to databases, ebooks, the library catalog, research guides, and interlibrary loan services.

Academic & Research Search 0
free.law

Unlock Docs helps search books, ebooks, papers, library records, or reading archives.

Documents & Articles 0
untools.co

Untools is a curated collection of thinking tools and frameworks. The site lists tools such as the Six Thinking Hats, Ishikawa Diagram and Eisenhower Matrix, described as aids for solving problems, making decisions and understanding systems.

Productivity & Automation 0
upjoke.com

UpJoke is a miscellaneous web resource for discovery, directories, archives, web culture, or useful tools.

Fun & Interesting 0
urresearch.rochester.edu

Institutional repository at the University of Rochester.

Academic & Research Search 0
urbanrail.net

UrbanRail.Net is a site about metro, subway, and light rail systems. It lists cities including Amsterdam, London, Moscow, Tokyo, and Sydney, and offers publications such as a tram atlas. The site is maintained and updated by Robert Schwandl.

Maps & Navigation 0
urbexology.com

Urbex is a miscellaneous web resource for discovery, directories, archives, web culture, or useful tools.

Maps & Navigation 0
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southtees.nhs.uk

Urine Color Chart is a miscellaneous web resource for discovery, directories, archives, web culture, or useful tools.

Health & Fitness 0