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The title says it all: this blog features physics videos found everywhere on the web: animations, demonstrations, lectures, documentaries.
Please go here if you want to suggest other nice physics videos, and here if I mistakingly infringed your copyrights. If you understand French, you'll find a huge selection of physics videos in French in my other blog Vidéos de Physique.

Saturday, 22 January 2011

Yale: Frontiers and Controversies in Astrophysics, Lecture 4


ASTR 160 - Frontiers and Controversies in Astrophysics
Spring 2007
Source: Yale University, Open Yale Courses

Professor Bailyn talks about formation of planets and why the inner planets (like earth) are different from the outer planets (like jupiter).  He calculates the velocity of the sun caused by Jupiter (which is detectable) and the velocity of the sun caused by the earth (which is too small to be detectable).  How we use Doppler shift to measure the velocity of distant stars.  Data showing an exoplanet orbiting at a short distance from its star, but showing the characteristics of an outer planet:  a "hot Jupiter".

See other lectures in this series.


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