cad3d has published a new resource:
the engineering toolbox - resources, tools and basic information for engineering and design.
the engineering toolbox - resources, tools and basic information for engineering and design.
more information about this resource.. .This website has an impressive array of charts, tables, formulas, definitions, properties, parameters and standards. It contains thousands, ranging from the linear expansion coefficient of materials to dry air properties. the site organizes its resources in well structured categories for easy navigation.
https://www.engineeringtoolbox.com/