Project Gutenberg 2004-09-08 Public domain in the USA. 182 Various Verschillende Various, Various Scientific American Supplement, No. 520, December 19, 1885 Produced by Juliet Sutherland, Don Kretz, and the Online Distributed Proofreading Team. "Scientific American Supplement, No. 520, December 19, 1885" by Various is a scientific publication from the late 19th century. This work serves as a collection of various articles and papers focusing on advancements and discussions in multiple fields, including engineering, technology, electricity, art, architecture, natural history, medicine, and societal issues, reflecting the scientific and industrial progress of the era. The opening of the publication features a table of contents outlining a wide range of topics. Initial sections cover engineering marvels such as steel structures and natural gas applications, as well as insights into ancient Roman water supply systems, showing the importance of infrastructure in both historical and contemporary contexts. It also highlights technological innovations like gas-engine alarms and methods for measuring photographic plate sensitivities, showcasing a commitment to modern advancements. In examining the various themes discussed, the beginning reveals a rich interplay of historical context and contemporary thought, aimed at educating readers on the scientific phenomena and technological capabilities of the time. (This is an automatically generated summary.) Reading ease score: 65.2 (8th & 9th grade). Neither easy nor difficult to read. en Science -- Periodicals T Text Scientific American Category: Science - Physics Category: Science - Biology Category: Science - Earth/Agricultural/Farming Category: Engineering & Technology Category: Architecture Category: Art Category: Health & Medicine Category: Environmental Issues Category: Reports & Conference Proceedings 243667 2025-08-06T05:20:23.095404 text/html 215325 2024-10-28T20:22:39 text/html 9152301 2025-08-06T05:20:52.210292 application/epub+zip 9139794 2025-08-06T05:20:36.242323 application/epub+zip 162117 2025-08-06T05:20:25.296328 application/epub+zip 10329333 2025-08-06T05:20:57.447668 application/x-mobipocket-ebook 10293502 2025-08-06T05:20:40.831248 application/x-mobipocket-ebook 311757 2022-09-07T02:00:12.653859 application/x-mobipocket-ebook 225479 2025-08-06T05:20:22.439336 text/plain; charset=us-ascii 205646 2024-10-28T20:22:39 text/plain; charset=us-ascii 17844 2025-08-06T05:20:57.629682 application/rdf+xml 18634 2025-08-06T05:20:25.798338 image/jpeg 4007 2025-08-06T05:20:25.549324 image/jpeg 8304131 2025-08-06T05:20:23.309385 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog