https://www.khanacademy.org/science/grade-11-physics-snc-aligned/x1d0fed5276339e80:circular-motion-and-rotational-dynamics/x1d0fed5276339e80:applications-of-angular-momentum-and-centripetal-force-in-real-life/v/introduction-to-reference-frames 2021-04-13T17:49:48Z Introduction to reference frames How the choice of reference frame is related to speed and velocity measurements video https://cdn.kastatic.org/googleusercontent/jaisauSVnlYb9UNWkWxL8iU2Qx9dvL-0WGUPSc9z0IDFJrbCDkvOQCQYkFf2hekF70TlwPbu1I2i2TwFr46unQS2 Introduction to reference frames How the choice of reference frame is related to speed and velocity measurements https://cdn.kastatic.org/ka-youtube-converted/3yaZ7lkQPUQ.mp4/3yaZ7lkQPUQ.mp4 415 Concepts of reference frames and foundations of Einstein’s special relativity https://www.khanacademy.org/college-careers-more/bjc/2015-challenge/2015-physics/v/bjc-special-relativity 2020-11-18T19:37:53Z A visualization of special relativity By Kadi Runnels This video is an entry for the Breakthrough Junior Challenge 2015 which gives a unique visualization of Special Relativity using hyperbolic geometry. This idea was inspired by the famous woodcut by M.C. Escher Circle Limit III.  video https://cdn.kastatic.org/googleusercontent/pECTXtDWfT3LHFCZAFD2vQ0c2UgZNcKdfvcA7tt55wAF5JFixk7i6KF7agC-CcbCifp8fUfF1xS1N1MD5ri3C2mf A visualization of special relativity By Kadi Runnels This video is an entry for the Breakthrough Junior Challenge 2015 which gives a unique visualization of Special Relativity using hyperbolic geometry. This idea was inspired by the famous woodcut by M.C. Escher Circle Limit III.  https://cdn.kastatic.org/ka-youtube-converted/EI2OPCdGXkw.mp4/EI2OPCdGXkw.mp4 576 Concepts of reference frames and foundations of Einstein’s special relativity https://www.khanacademy.org/college-careers-more/bjc/2015-challenge/2015-physics/v/bjc-special-relativity-simhon 2020-11-18T19:37:56Z Special Relativity By Sage Simhon Einstein's theory of Special Relativity is one of the most important and fundamental concepts in science, and it gave way to many further theories.  video https://cdn.kastatic.org/googleusercontent/yiWGJh5iqHPXuNHPQygzB9SRAhF1WMB7MKAJ1LyPwg2a8t_t73dz-7G70GUF8sMknWu2-z68R1bDDNkllSyydmvq6w Special Relativity By Sage Simhon Einstein's theory of Special Relativity is one of the most important and fundamental concepts in science, and it gave way to many further theories.  https://cdn.kastatic.org/ka-youtube-converted/UHOH7Yjf3GM.mp4/UHOH7Yjf3GM.mp4 633 Concepts of reference frames and foundations of Einstein’s special relativity https://www.khanacademy.org/science/cosmology-and-astronomy/universe-scale-topic/xcdef9704:special-relativity/v/galilean-transformation-and-contradictions-with-light 2021-02-07T17:14:00Z Galilean transformation and contradictions with light Here we'll see how classical physics predicts scenarios that disagree with what we observe in nature. Something's got to give… video https://cdn.kastatic.org/googleusercontent/_bPckMgO3zwaGQ0ivVxBWuO2tSuwMQXYEOwRRrDD3zarqycVPveC695hK74yV0e63pYxmNb9e2g7rYUKy036AEKH Galilean transformation and contradictions with light Here we'll see how classical physics predicts scenarios that disagree with what we observe in nature. Something's got to give… https://cdn.kastatic.org/ka-youtube-converted/OIwp8m3S30c.mp4/OIwp8m3S30c.mp4 484 Concepts of reference frames and foundations of Einstein’s special relativity https://www.khanacademy.org/college-careers-more/bjc/2015-challenge/2015-physics/v/bjc-general-relativity 2020-11-18T19:37:56Z Special and general relativity By Max Thorniley A simple explanation of special and general relativity, a brief history of the lead up to the development of the theory, and the implications and significance. video https://cdn.kastatic.org/googleusercontent/hsl1ivZ0pz-FD7KEw0nw7M0V9Il_1rkrtn1hFWX8MQLZ7x_q-mU1sbazUHhR3U1AV-uW7Yh-YL0crAoeCt7zGz4 Special and general relativity By Max Thorniley A simple explanation of special and general relativity, a brief history of the lead up to the development of the theory, and the implications and significance. https://cdn.kastatic.org/ka-youtube-converted/YX5Fkn60R6M.mp4/YX5Fkn60R6M.mp4 487 Concepts of reference frames and foundations of Einstein’s special relativity