Project Gutenberg 2005-08-25 Public domain in the USA. 166 Clark, Bertha May 1880 12009543 General Science Heat -- Temperature and heat -- Other facts about heat -- Burning or oxidation -- Food -- Water -- Air -- General properties of gases -- Invisible objects -- Light -- Refraction -- Photography -- Color -- Heat and light as companions -- Artificial lighting -- Man's way of helping himself -- The power behind the engine -- Pumps and their value to man -- The water problem of a large city -- Man's conquest of substances -- Fermentation -- Bleaching -- Dyeing -- Chemicals as disinfectants and preservatives -- Drugs and patent medicines -- Nitrogen and its relation to plants -- Sound -- Musical instruments -- Speaking and hearing -- Electricity -- Some uses of electricity -- Modern electrical inventions -- Magnets and currents -- How electricity may be measured -- How electricity is obtained on a large scale. Produced by John Hagerson, Kevin Handy, Sankar Viswanathan and the Online Distributed Proofreading Team at https://www.pgdp.net en Science Q Text Browsing: Science - General 776208 776222 2024-08-07T10:17:10.080487 2023-09-07T11:38:52.840648 text/html text/html 746379 2020-12-12T10:56:35 text/html; charset=iso-8859-1 3357457 2020-12-12T10:56:36 text/html; charset=iso-8859-1 application/zip 3654854 2024-08-07T10:17:28.702124 application/epub+zip 3663404 2024-08-07T10:17:14.959250 application/epub+zip 303723 2024-08-07T10:17:12.384213 application/epub+zip 3947469 2024-08-07T10:17:37.021230 application/x-mobipocket-ebook 3848314 2024-08-07T10:17:25.361189 application/x-mobipocket-ebook 519656 2022-09-08T06:22:42.020878 application/x-mobipocket-ebook 599499 599371 2024-08-07T10:17:06.801257 2023-09-07T11:38:50.044638 text/plain; charset=us-ascii text/plain 599272 2020-12-12T10:56:35 text/plain; charset=iso-8859-1 205488 2020-12-12T10:56:36 text/plain; charset=iso-8859-1 application/zip 599514 2020-12-12T10:56:35 text/plain; charset=us-ascii 205450 2020-12-12T10:56:36 text/plain; charset=us-ascii application/zip 19877 2024-08-07T10:17:37.201138 application/rdf+xml 13645 2024-08-07T10:17:12.912208 image/jpeg 3424 2024-08-07T10:17:12.660204 image/jpeg 3468119 2024-08-07T10:17:10.606250 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