00:24:35 Sekazi Mtingwa: Latest measurement of proton radius: https://www.nature.com/articles/d41586-019-03432-4 00:25:55 Wlodek Guryn: Thanks for the reference. 00:40:25 brynna Moran: What does it physically mean for those forces to be P and T symmetrical? 00:40:25 Letrell Harris: Can you explain more in depth about what “we wouldn’t be here means.”? 00:42:33 brynna Moran: That was a very helpful and clear explanation, thank you very much! 00:44:41 Mary Bishai: Emi Noether was a very famous mathematician. One of her greatest contribution to physics was the concept that symmetries in nature lead to conservation laws: https://en.wikipedia.org/wiki/Noether%27s_theorem 00:44:43 Letrell Harris: Thank you, that was very helpful 00:45:44 Mary Bishai: And don't thrust the Wikipedia entry - I just had that at hand ;) 00:49:02 Ambar Rodriguez: How does the weak force break the symmetries? 00:49:45 Wlodek Guryn: We’ll ask in moment. 00:50:56 Ambar Rodriguez: The interactions would require different particles when changing symmetries then? 00:52:23 Ambar Rodriguez: Ok ok, now I think it is more clear, thank you! 00:53:59 Mary Bishai: On the history of the discovery of CP symmetry (or time symmetry) violation in weak decays of quarks: https://cerncourier.com/a/cp-violations-early-days/ 00:54:12 Mary Bishai: This was a Nobel prize winning experiment at BNL. 00:56:50 Wlodek Guryn: Thank you Mary! 01:03:05 Letrell Harris: What do you mean by “anomalous”? 01:03:52 Wlodek Guryn: We’ll ask in a moment 01:07:17 Letrell Harris: Thank you 01:15:06 Sekazi Mtingwa: Fabulous lecture!!! Thanks, Bill. 01:15:12 Karan Kumar: Why mean of theoretical value of g of Davier et al. (10) is quite different from other theoretical predictions? 01:19:39 Sekazi Mtingwa: Will the slides be available for the students? 01:20:42 Wlodek Guryn: Yes, both slides and recording shall be made available. 01:21:08 Wlodek Guryn: You need to go to the webpage of the Summer Lectures 01:38:00 David Zimmerman: Bill - thank you for the lectgure. It was great.