Search results

A curated registry of biological and biomedical ontologies

Controlled terminology for art and cultural-heritage research

Educational tools for examining global facts and assumptions

A multilingual encyclopedia with a language-aware search

Related English words for revising a draft

A versioned taxonomic catalogue of spiders

A historical London map linked to texts and reference records

Math and electrical calculations in a compact tool directory

Metric and imperial conversion with reference charts

Chemical calculations with balancing and molar-mass tools

Find destination tours, attraction tickets and travel experiences

Bible search with precise control over the books searched

An independent reference for Steam catalogue and activity data

A configurable vault for credentials and reference data

A subject-organized reference to Alabama

Regional history connected to Philadelphia's present

English definitions beside usage and collocation references

English dictionary lookup with explicit usage guidance

Discover peer-reviewed open-access books and publishers

Discover linked publications, datasets and research software

Physical constants linked to units and uncertainty guidance

Spectral lines and atomic energy-level reference data

A connected library of Jewish texts and commentaries

Quran reading and listening organized by surah and topic