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Smithsonian Magazine on MSN2 天
The Man Who Invented the Modern Zoo Tested Out His Ideas on People First
Carl Hagenbeck believed that animals should be housed in habitats that mimicked their natural environment. Earlier, he'd ...
archive2 天
Hybrid composite/metal pipe: Theoretical analysis and experimental study
Addeddate 2025-04-12 04:25:32 Alt-identifier Liu2001 Associated-names University of Alberta. Dept. of Mechanical Engineering Autocrop_version 0.0.18_books-serials-20230720-0.3 Barcode 0162014232472 ...
archive6 天
Making the printed picture; a treatise on photo-engraving methods
An illustration of a magnifying glass. An illustration of a magnifying glass.