about account add arrow-down arrow-left arrow-right arrow-up back-arrow register-arrow book-mobile book categories chat-bubble-mobile chat-bubble close college contact-us credit-card drag email-square facebook-mobile facebook-square facebook faq film history home load modal-error person pinterest-square play-mobile play queue remove resume search share show star tick trailer trash twitter-mobile twitter-square twitter university warning warning youtube-square open-eye close-eye promo-tag tag check info info active
9

Entropy and Counting

Lecture no. 9 from the course: Mysteries of Modern Physics: Time

Entropy and Counting

Taught by Professor Sean Carroll | 30 min | Categories: The Great Courses Plus Online Science Course

After establishing in previous lectures that the arrow of time must be due to entropy, begin a deep exploration of this phenomenon. In the 1870s, physicist Ludwig Boltzmann proposed a definition of entropy that explains why it increases toward the future. Analyze this idea in detail.

Reviews

m********t
April 22, 2019

Reply

Delete

s********m
February 23, 2019
Excellent presentation of ideas. Very interesting to hear how Physics understands Time. My background and orientation is Philosophy, but I'm interested in the perspective from science. I was hoping to discover what ideas are "demonstrated / proven fact", what are "scientific law" (or is that the same as demonstrated/proven fact?), and what is assumption with respect to time, but I'm still not clear - perhaps my expectation was unreasonable given only 12 hours of lecture. Wondering what are the latest ideas (in 2019) since the course was created in 2012.

Reply

Delete

m********t
April 20, 2018

Reply

Delete