Web LINKS for SCIENCE-ENGINEERING Info

Home page > This SCIENCE-ENGINEERING LINKS page ! NOTE ! Like most 'LINKS' pages on the web, there will, no doubt, be more and more dead links on this page over time. It may be years at a time before I return to this page to remove dead links and replace some links with better links. In the meantime, try 'WEB SEARCH links' provided on this page.

Table of Contents: (links to sections of this page, below) ASTRONOMY (including asteroid info) BIOLOGY CHEMISTRY ENGINEERING MATHEMATICS PHYSICS 'WEB DIRECTORY' pages on Science-Engineering Some SEARCH engines (on a separate web page) by which to find more links on science/engineering Note : You can use an option like 'Find in This Page ...' of your web browser to find keywords on this page, such as 'asteroid'   OR   'black hole'   OR   'dna'. End of Table of Contents. Start of Science-Engineering Links.

ASTRONOMY Links (including asteroid info) < Go to Table of Contents, above. > < Go to Top of Page, above. > Astronomy Magazine News - at www.astronomy.com/news Jet Propulsion Labs NEO page - at neo.jpl.nasa.gov (NEO = Near Earth Objects --- such as asteroids) Phys.org Astronomy News - at phys.org/ space-news/ astronomy/ Science Daily's Astronomy News - at sciencedaily.com/ news/ space_time/ astronomy/ Sky & Telescope Astronomy News - at www.skyandtelescope.com/ astronomy-news/ Space News - at www.space.com/news/ Space News from Discovery Communications - at news.discovery.com/space Universe Today News - at www.universetoday.com For some classic astronomy texts (generally more than 80 years old), see: gutenberg.org Astronomy Bookshelf - at www.gutenberg.org/ wiki/ Astronomy_(Bookshelf) More free e-books may be available from freebookcentre.net (no registration required!! no attempts to keep you on their web pages!! no annoying popups!! in 2016) --- in the area of Physics-Astronomy. A similar 'free ebooks' site is at e-booksdirectory.com. See the Science-Astronomy category. Some 'free ebooks' and 'free HTML sites' in the astronomy category are at physicsdatabase.com. At 'openlibrary.org', you can use the Search field at the bottom of the astronomy page to find books on specific topics. You can sort the results by 'most recent' (newest) or 'first published' (oldest). WEB SEARCH on keywords 'astronomy math' WEB SEARCH on keywords 'astronomy news' WEB SEARCH on keywords 'astronomy asteroids' WEB SEARCH on keywords 'NEO near earth objects' Go to Table of Contents, above.

BIOLOGY Links < Go to Table of Contents, above. > < Go to Top of Page, above. > For some classic biology/life-sciences texts (generally more than 80 years old), see: gutenberg.org Biology Bookshelf - at www.gutenberg.org/ wiki/ Biology_(Bookshelf) gutenberg.org Microbiology Bookshelf - at www.gutenberg.org/ wiki/ Microbiology_(Bookshelf) gutenberg.org Mycology Bookshelf - at www.gutenberg.org/ wiki/ Mycology_(Bookshelf) gutenberg.org Microscopy Bookshelf - at www.gutenberg.org/ wiki/ Microscopy_(Bookshelf) gutenberg.org Ecology Bookshelf - at www.gutenberg.org/ wiki/ Ecology_(Bookshelf) gutenberg.org Botany Bookshelf - at www.gutenberg.org/ wiki/ Botany_(Bookshelf) gutenberg.org Physiology Bookshelf - at www.gutenberg.org/ wiki/ Physiology_(Bookshelf) gutenberg.org Zoology Bookshelf - at www.gutenberg.org/ wiki/ Zoology_(Bookshelf) Natural History Bookshelf - at www.gutenberg.org/wiki/Natural_History_(Bookshelf) More free e-books may be available from freebookcentre.net (no registration required!! no attempts to keep you on their web pages!! no annoying popups!! in 2016) --- in the area of Biology --- in particular in the areas of Bacteriology Biomechanics Cell Biology Enotmology (Insects) Parasitology Plant Pathology Virology Zoology A similar 'free ebooks' site is at e-booksdirectory.com. See the Science-Biology category. Some 'free ebooks' and 'free HTML sites' in the biology category are at physicsdatabase.com. At 'openlibrary.org', you can use the Search field at the bottom of the biology page to find books on specific topics. You can sort the results by 'most recent' (newest) or 'first published' (oldest). WEB SEARCH on keywords 'biology news' WEB SEARCH on keywords 'biology genetics' Go to Table of Contents, above.

CHEMISTRY Links < Go to Table of Contents, above. > < Go to Top of Page, above. > For some classic chemistry texts (generally more than 80 years old), see: gutenberg.org Chemistry Bookshelf - at www.gutenberg.org/wiki/Chemistry_(Bookshelf) More free e-books may be available from freebookcentre.net (no registration required!! no attempts to keep you on their web pages!! no annoying popups!! in 2016) --- in the area of Chemistry --- in particular in the areas of Applied Chemistry Biochemistry Crystal Chemistry Inorganic Chemistry Molecular Chemistry Computational Chemistry A similar 'free ebooks' site is at e-booksdirectory.com. See the Science-Chemistry category. Some 'free ebooks' and 'free HTML sites' in the chemistry category are at physicsdatabase.com. At 'openlibrary.org', you can use the Search field at the bottom of the chemistry page to find books on specific topics. You can sort the results by 'most recent' (newest) or 'first published' (oldest). WEB SEARCH on keywords 'chemistry news' WEB SEARCH on keywords 'chemistry math' WEB SEARCH on keywords 'chemistry organic' Go to Table of Contents, above.

ENGINEERING Links < Go to Table of Contents, above. > < Go to Top of Page, above. > For some classic engineering texts (generally more than 80 years old), see: gutenberg.org Engineering Bookshelf - at www.gutenberg.org/wiki/Engineering_(Bookshelf) gutenberg.org Technology Bookshelf - at www.gutenberg.org/wiki/Technology_(Bookshelf) WEB SEARCH on keywords 'engineering math' WEB SEARCH on keywords 'engineering news' Go to Table of Contents, above.

MATHEMATICS Links < Go to Table of Contents, above. > < Go to Top of Page, above. > For some classic math texts (generally more than 80 years old), see: gutenberg.org Mathematics Bookshelf - at www.gutenberg.org/wiki/Mathematics_(Bookshelf) More free e-books may be available from freebookcentre.net (no registration required!! no attempts to keep you on their web pages!! no annoying popups!! in 2016) --- in the area of Mathematics --- in particular, in the areas of Geometry Mathematical Series Trigonometry Numerical Analysis Applied Mathematics Differential Equations Harmonic Analysis A similar 'free ebooks' site is at e-booksdirectory.com. See the Mathematics category. Some 'free ebooks' and 'free HTML sites' in the math category are at physicsdatabase.com. At 'openlibrary.org', you can use the Search field at the bottom of the math page to find books on specific topics. You can sort the results by 'most recent' (newest) or 'first published' (oldest). Many 'math-links' have been put on a separate LINKS to math-websites page which includes links to math-news sites, math-blog sites, math-forum sites, math-history sites, etc. And here is a page of LINKS to math e-documents on the web organized into categories such as Geometry, Number Theory, Algebra, Analysis (Calculus), Applied Math, Numerical Analysis, etc. As an alternative to the math 'LINKS' pages above, here is a page that offers quick 'direct-access' to math eDocs --- 'in the public domain', mostly PDF files, backed-up (preserved) on this site. WEB SEARCH on keywords 'mathematics geometry' WEB SEARCH on keywords 'mathematics series' WEB SEARCH on keywords 'mathematics news' Go to Table of Contents, above.

PHYSICS Links < Go to Table of Contents, above. > < Go to Top of Page, above. > For some classic physics texts (generally more than 80 years old), see: gutenberg.org Physics Bookshelf - at www.gutenberg.org/wiki/Physics_(Bookshelf) More free e-books may be available from freebookcentre.net (no registration required!! no attempts to keep you on their web pages!! no annoying popups!! in 2016) --- in the area of Physics --- in particular in the areas of Mathematical Physics Computational Physics Mechanics Classical Mechanics Dynamics Vibrations and Waves Kinetic Theory Continuum Mechanics A similar 'free ebooks' site is at e-booksdirectory.com. See the Science-Physics category. Some 'free ebooks' and 'free HTML sites' in the physics category are at physicsdatabase.com. At 'openlibrary.org', you can use the Search field at the bottom of the physics page to find books on specific topics. You can sort the results by 'most recent' (newest) or 'first published' (oldest). WEB SEARCH on keywords 'physics math' WEB SEARCH on keywords 'physics quantum' WEB SEARCH on keywords 'physics relativity' Go to Table of Contents, above.

'WEB DIRECTORY' pages on Science/Engineering < Go to Table of Contents, above. > < Go to Top of Page, above. > It seems that 'web directories' are dying out. Google and Yahoo closed theirs down around 2014. Then around 2017, the directory from which the Google and Yahoo web-directories were spawned --- the DMOZ 'Open Directory Project' closed down. It seems that it is just not feasible for a team of people to keep up with all the sites that are going dead and the new sites that appear. About a year after the dmoz.org site closed down, it appears that a new web-directory site --- curlie.org --- arose from the ashes of 'dmoz.org'. It remains to be seen how long that web-directory lasts. Following are a few links related to 'web directory' sites. Wikipedia List of Web Directories - at en.wikipedia.org/ wiki/ List_of_web_directories the 'Curlie' web-directory project on SCIENCE - at curlie.org/Science/ (click on categories such as "Astronomy" or "Biology" or "Chemistry" or "Earth Sciences" or "Environment" or "Math" or "Physics" or "Technology" --- or "History" or "Museums" or "News and Media" or "Organizations") Rather than depending on any remaining web-directory links, here are some WEB SEARCHES to get you started with 'science/engineering' inquiries --- using keywords 'astronomy news', and keywords 'chemistry news', and keywords 'engineering news'. Another approach to take: Go to the Wikipedia 'Fields of Science and Technology' page and start following links from that page. Go to Table of Contents, above.

Bottom of this SCIENCE-ENGINEERING LINKS page. To return to a previously visited web page location, click on the Back button of your web browser, a sufficient number of times. OR, use the History-list option of your web browser. OR ... < Go to Table of Contents, above. > < Go to Top of Page, above. > Or you can scroll up, to the top of this page. Page history: Page was created 2014 Sep 11. Page was changed 2015 May 22. (Removed dead links to the old Google and Yahoo 'web-directories'. Added 'WEB SEARCH' links. Removed some dead links. Added some links.) Page was changed 2015 Jul 23. (Added gutenberg.org Bookshelfs.) Page was changed 2016 Oct 02. (Added to the Math, Physics, and other sections.) Page was changed 2018 Sep 15. (Added css and javascript to try to handle text-size Go to Top of Page, abovefor smartphones, esp. in portrait orientation. Replaced old 'dmoz.org' 'web-directory' link with 'curlie.org'.) Page was changed 2021 Feb 19. (Specified the width of images in proportion to the width of the browser window. Some minor re-formatting.)