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Undergrad Ta-Pei Cheng's "Relativity & Cosmology" Course on YouTube

Thread starter robphy
Start date Jan 20, 2022
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Cosmology Relativity Videos

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Ta-Pei Cheng's "Relativity & Cosmology" course on YouTube offers a comprehensive exploration of advanced topics in physics. The course is accompanied by a well-regarded textbook on gauge theory co-authored by Cheng and Li, which is recognized as a standard reference. The lectures are aimed at those interested in deepening their understanding of relativity and cosmology. The YouTube channel features organized playlists for easy navigation of the content. Overall, this course presents a valuable resource for students and enthusiasts of theoretical physics.

Jan 20, 2022

#1

robphy

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I was browsing YouTube (again) and stumbled upon this set of lectures by Ta-Pei Cheng.
(I've seen the cover of the textbooks...
but I'm not familiar with the author-lecturer or the details of the texts... but this looks interesting.)

http://www.umsl.edu/~chengt/

https://www.youtube.com/channel/UCodbYw79miRzcIjwybzYfmw/playlists

Physics news on Phys.org

Jan 21, 2022

#2

vanhees71

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I know the book on gauge theory by Cheng and Li which is a good standard textbook.

Thread 'Am I understanding the concept of proper frame of reference?'

MOVING CLOCKS In this section, we show that clocks moving at high speeds run slowly. We construct a clock, called a light clock, using a stick of proper lenght ##L_0##, and two mirrors. The two mirrors face each other, and a pulse of light bounces back and forth betweem them. Each time the light pulse strikes one of the mirrors, say the lower mirror, the clock is said to tick. Between successive ticks the light pulse travels a distance ##2L_0## in the proper reference of frame of the clock...

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