• Caltech's Division of Physics, Mathematics and Astronomy and The Feynman Lectures Website are pleased to present this online edition of
    The Feynman Lectures on Physics

    Feynman • Leighton • Sands

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    Now, anyone with internet access and a web browser can enjoy reading2 a high quality up-to-date copy of Feynman's legendary lectures.

    This edition has been designed for ease of reading on devices of any size or shape; text, figures and equations can all be zoomed without degradation.3

    Volume I

    mainly mechanics, radiation, and heat

    Volume II

    mainly electromagnetism and matter

    Volume III

    quantum mechanics

    ♢

    Lecture Photos 1961-62

    1314 flp lecture photos4

    ios能用的梯子2022

    1729 flp lecture photos

    免费爬墙加速器

    611 pages of flp lecture notes

    Original Course Handouts 1961-63

    744 pages of flp student handouts

    For comments or questions about this edition please contact Michael Gottlieb.

    2022还能用的梯子

    Richard Feynman talking with a teaching assistant after the lecture on The Dependence of Amplitudes on Time, Robert Leighton and Matthew Sands in background, April 29, 1963.

    Photographs by Tom Harvey. Copyright © California Institute of Technology.

    Contributions from many parties have enabled and benefitted the creation of the HTML edition of The Feynman Lectures on Physics. We wish to thank

    • Carver Mead, for his warm encouragement and generous financial support, without which this edition would have been impossible,

    • Thomas Kelleher and Basic Books, for their open-mindedness in allowing this edition to be published free of charge,

    • Adam Cochran, for tying up the many slippery loose ends that needed to come together in order for this edition to be realized,

    • Alan Rice for his steadfast enthusiasm for this project, and for rallying the support of Caltech's Division of Physics, Mathematics and Astronomy.

    1. Clicking the "Restore my view" link will take you back to where you last left off reading, or you can restore your view directly by loading a special URL, feynmanlectures.caltech.edu#restore - bookmark it for convenience. The "Restore my view" link and URL will become active only after you've closed one of the chapters of this edition. For view restoration to work properly you may need to clear your browser cache of our pages. ↩
    2. However, we want to be clear that this edition is only ios能用的梯子2022, and this posting does not transfer any right to download all or any portion of The Feynman Lectures on Physics for any purpose. ↩
    3. This HTML5-based edition features LaTeX equations rendered by MathJax JavaScript, and scalable vector graphic (SVG) figures. Your browser must support javascript and permit scripts from mathjax.org. LocalStorage must be enabled. We recommend using a modern browser; some older browsers may not display this edition correctly. PNG figures (that degrade when scaled) may be served to browsers that do not support SVG. We do not support versions of Internet Explorer older than 9.0. For information about MathJax features and accessibility options, right-click on any display equation. ↩
    4. Links to the photos also appear near the title of each FLP chapter. ↩