The Engineering ToolBox
engineeringtoolbox.comTechnical data and calculations for engineering study
Technical data and calculations for engineering study
An index of hymn texts, tunes and hymnals
Language classification linked to bibliographic reference
Structural language properties in a comparative database
Psychology modules assembled into adaptable textbooks
View genomic data against genome assemblies
Search and inspect three-dimensional molecular structures
A curated registry of biological and biomedical ontologies
British and Irish case law and legislation
Curated pathways with visualization and analysis tools
Standardized bacterial information at strain level
Educational collections of historical source texts
Enterprise IT reporting and technical reference coverage
Histories of English words and their earlier forms
Shakespeare texts with scholarly and educational context
Related English words for revising a draft
A community-edited reference for recordings and releases
Regional films and original entertainment with genre browsing
A collaboratively written mathematics encyclopedia
English definitions beside usage and collocation references
English dictionary lookup with explicit usage guidance
Discover peer-reviewed open-access books and publishers
Spectral lines and atomic energy-level reference data
Official MLA guidance on writing and documentation