Project Gutenberg 2013-11-15 Public domain in the USA. 220 Baker, Ray Stannard 1870 1946 Boys' Second Book of Inventions Produced by Chris Curnow and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive) "Boys' Second Book of Inventions" by Ray Stannard Baker is a non-fiction work written in the early 20th century." The book explores a variety of groundbreaking inventions and scientific discoveries, appealing particularly to a young audience curious about innovations and the marvels of science and technology. Topics covered include the wonders and dangers of radium, advancements in aviation with steerable balloons, and the invention of devices that measure earthquakes, illustrating how ordinary people can achieve extraordinary feats through invention and experimentation. "The beginning of the book introduces the miraculous properties of radium, a substance discovered by scientists Pierre and Marie Curie." This chapter highlights radium's extraordinary ability to emit heat and light without losing mass, emphasizing its potential applications and the dangers it poses due to its radioactive nature. It describes the fascination surrounding its discovery, including its glowing properties in darkness and its medical uses. Overall, the opening serves as a thrilling invitation into the world of scientific inquiry and invention, setting the stage for the innovations that will be discussed in the subsequent chapters. (This is an automatically generated summary.) file:///public/vhost/g/gutenberg/html/files/44188/44188-h/images/cover.jpg en Technology -- Juvenile literature Inventions T Text Browsing: Children & Young Adult Reading Browsing: Computers & Technology 320031 320045 2024-09-18T13:32:20.113914 2023-09-19T09:13:03.425865 text/html text/html 315846 2013-11-15T15:18:26 text/html; charset=iso-8859-1 2393450 2013-11-15T15:18:38 text/html; charset=iso-8859-1 application/zip 2205953 2024-09-18T13:32:25.819887 application/epub+zip 2208899 2024-09-18T13:32:21.386890 application/epub+zip 155537 2024-09-18T13:32:20.760886 application/epub+zip 2285186 2024-09-18T13:32:29.269828 application/x-mobipocket-ebook 2255762 2024-09-18T13:32:25.143862 application/x-mobipocket-ebook 213540 2022-09-20T07:20:58.116268 application/x-mobipocket-ebook 269329 269140 2024-09-18T13:32:19.282892 2023-09-19T09:13:02.533845 text/plain; charset=us-ascii text/plain 269207 2013-11-15T15:18:26 text/plain; charset=iso-8859-1 100165 2013-11-15T15:18:38 text/plain; charset=iso-8859-1 application/zip 269237 2013-11-15T15:18:26 text/plain; charset=us-ascii 100114 2013-11-15T15:18:38 text/plain; charset=us-ascii application/zip 20301 2024-09-18T13:32:29.425827 application/rdf+xml 12173 2024-09-18T13:32:20.864887 image/jpeg 2515 2024-09-18T13:32:20.811879 image/jpeg 2695542 2024-09-18T13:32:20.311954 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://www.gutenberg.org/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog More titles under Grayson, David