Physics
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Einstein for Everyone
This book is a continuing work in progress. When I have time, I edit, expand and add to the chapters. For the convenience of readers who need a stable version that will not change, there are archived versions, which are snapshots of the state of the book at the date indicated: For over a decade I have taught an introductory, undergraduate class, "Einstein for Everyone," at the University of Pittsburgh to anyone interested enough to walk through door.
Personal and Historical Perspectives of Hans Bethe
Three Lectures by Hans Bethe IN 1999, legendary theoretical physicist Hans Bethe delivered three lectures on quantum theory to his neighbors at the Kendal of Ithaca retirement community (near Cornell University). Given by Professor Bethe at age 93, the lectures are presented here as QuickTime videos synchronized with slides of his talking points and archival material. Intended for an audience of Professor Bethe's neighbors at Kendal, the lectures hold appeal for experts and non-experts alike.
Splung.com Physics is a website for students of physics with sections on: mechanics, optics, electricity and magnetism, thermodynamics, nuclear physics and cosmology. The site also uses Flash for demonstrations. I am looking to expand this site by concentrating on the interactive components. If you are passionate about physics and would like to collaborate in this project, by writing content then please contact me .
Britney Spears' Guide to Semiconductor Physics - Lasers and Optoelectronics
Here is an alphabetical list of online physics books available for free download. There are books covering the areas of classical mechanics, thermodynamics, electromagnetism, optics, quantum physics, atomic and nuclear physics, astrophysics, and more. The books are stored in various formats for downloading or online reading. Here is a categorized directory of physics books . This list will be updated daily.
Free Physics Books
If Satan plays miniature golf, this is his favorite hole. A ball struck at A, in any direction, will never find the hole at B — even if it bounces forever. The idea arose in the 1950s, when Ernst Straus wondered whether a room lined with mirrors would always be illuminated completely by a single match. Straus’ question went unanswered until 1995, when George Tokarsky found a 26-sided room with a “dark” spot; two years later D. Castro offered the 24-sided improvement above. If a candle is placed at A, and you’re standing at B, you won’t see its reflection anywhere around you — even though you’re surrounded by mirrors.
The Black Hole | Futility Closet
We have been increasingly using Flash animations for illustrating Physics content. This page provides access to those animations which may be of general interest. The animations will appear in a separate window. The animations are sorted by category, and the file size of each animation is included in the listing. Also included is the minimum version of the Flash player that is required; the player is available free from http://get.adobe.com/flashplayer/ .
Physics Flash Animations
Relativity theory tells us that a moving clock is slowed down and a moving rod is shrunk in the direction of its motion. If I am an inertial observer, I will find the effect to come about for the clocks and rods of a spaceship moving past at rapid speed. But if that spaceship is moving inertially, then, by the principle of relativity, the spaceship's observer must find the same thing for my clocks and rods .
Problem of Reciprocity