Watch in HD1080p: https://www.youtube.com/watch?v=aObDAxzFyas&list=PLOyuQaVrp4qqS8yBeQpIeMQ5bDoijOQ9c&index=10
After discussions of some large theoretical and methodological issues, this lecture presents paintings by two artists who were members of the Song imperial family, Zhao Lingrang by birth and Wang Shen through marriage. The strengths and limitations of their works are brought out in a discussion of the implications of amateurism in painting.
What is going on in North Korea? Do recent events signal an opening in the system or a spiraling down of the system? What challenges do the United States and its allies face?
Professor Victor D. Cha (Ph.D. Columbia, MA Oxford, BA Columbia) is director of Asian Studies and holds the D.S. Song Chair in the Department of Government and School of Foreign Service at Georgetown University. In 2009, he was named as Senior Adviser and the inaugural holder of the new Korea Chair at the Center for Strategic and International Studies in Washington, DC. He left the White House in May 2007 after serving since 2004 as Director for Asian Affairs at the National Security Council. At the White House, he was responsible primarily for Japan, the Korean peninsula, Australia/New Zealand and Pacific Island nation affairs. Dr. Cha was also the Deputy Head of Delegation for the United States at the Six Party Talks in Beijing, and received two Outstanding Service commendations during his tenure at the NSC.
Physics 111 Advanced Laboratory. Professor Sumner Davis
This video accompanies several experiments in the course, providing students with background on optics, optical instruments, rays, wave fronts, and Snell's Law.
You will learn how to move light where and how you want, how light bends, and why it bends. Like reflection, refraction involves the angles that the incident ray and the refracted ray make with the surface. Unlike reflection, refraction depends also on the media through which the light rays are travelling. This dependence is made explicit in Snell's Law via refractive indices, numbers that are constant for given media.
http://advancedlab.org