Important 20th Century Discoveries in Physics Eight major discoveries made in physics plus a summary of the centennial celebration of the American Physical Society. http://www.jupiterscientific.org/sciinfo/apscentennial.html

Center for History of Physics Has a mission to preserve and make known the history of modern physics and allied sciences including astronomy, geophysics and optics. http://www.aip.org/history/

The Net Advance of Physics: History Review Articles and Tutorials in an Encyclopaedic Format at The Net Advance of Physics, MIT http://web.mit.edu/redingtn/www/netadv/hist.html

Timeline of Physics (1896 to present) American Physical Society site explores developments in physics in the 20th century, along with their historical context. http://www.timeline.aps.org/

Emilio Segrè Visual Archives The world's largest collection of photographs, films and other images in the history of physics and allied sciences such as astronomy and geophysics. http://www.aip.org/history/esva/

Center for History of Physics Newsletter Reports on work in the history of physics (and allied fields such as astronomy and geophysics). On-line issues starting with vol.26 (1994). http://www.aip.org/history/web-news.htm

The Fall of Parity Experiments in 1956 demonstrate that our world is distinguishable from its mirror image. http://physics.nist.gov/GenInt/Parity/cover.html

The Invention of Knowledge The connections between the sciences and the arts with emphasis on physics. A prediction on where to look for the next great theories in physics. http://www.artifacts.com

History and Philosophy of Physics Research activities, essays, databases, books, meetings in History and Philosophy of Physics. A section is dedicated to the development of Physics in Italy. http://matsci.unipv.it/percorsi/

Transistorized Describes the history of most important invention of the 20th century: the transistor. http://www.pbs.org/transistor/

The Nuclear Files Most comprehensive and user friendly online tool to explore the political and ethical dilemmas of the Nuclear Age. A citizen guide to create a saner and more peaceful world. Classroom use encouraged. http://www.NuclearFiles.org/

History of Physics Archives Databases and digital archives for the History of Physics in Italy after the second world war. http://fisicavolta.unipv.it/asf/

History of Physics and Astronomy Collection of links to articles on the history of Physics and Astronomy. http://www.physlink.com/Education/History.cfm

Century of Physics Time Line A hundred years timeline of Physics presented by the American Physical Society. http://timeline.aps.org/APS/index.html

Selected Classic Papers Historically important papers in the fields of: Atomic hypothesis and discrete nature of matter Electricity, electrochemistry, and electrolyte solutions The electron and electronic structure of matter Elements: nature, number, and discovery Environmental chemistry Gases Periodic table and periodic law Radioactivity and the nucleus Thermodynamics http://maple.lemoyne.edu/~giunta/papers.html

Jim's Science Page Science quotes, facts and falacies... mystery scientists in history link. http://hometown.aol.com/eilatlog/myhomepagescience.html

Physics in Australia to 1945 The listing is intended to be a complete register of all Australian publications in physics up to the end of 1945 http://www.asap.unimelb.edu.au/bsparcs/physics/

Selected Papers Selected Papers of Great American Physicists on the web. http://www.aip.org/history/gap/

Infography about History of Physics Sources recommended by a professor who specializes in the study of the history of physics. http://www.infography.com/content/950283284275.html

Physics Cabinet A virtual museum of physics apparatus and instruments of the nineteenth and twentieth centuries. http://spazioinwind.libero.it/gabinetto_di_fisica/index.html