peaigr

7 ms·

1. 1.▲
   by peaigr 14y ago

   Cosmological redshift comes from general relativity, not the SR Doppler effect. Local motion does produce a shift on top of that, but that's not all redshift. Nearby galaxies are actually blue shifted.
2. 2.▲
   by peaigr 14y ago

   I wouldn't say "almost entirely." A couple more minutes of Googling brought up this: http://www.cdc.gov/nchs/data/databriefs/db88.pdf which says that yes, the greatest reductions in death rates were for infants and children, but for every
3. 3.▲
   by peaigr 15y ago

   If you're talking about his undergrad class (CS 161), there are at least videos of his lectures on OpenClassroom: http://openclassroom.stanford.edu/MainFolder/CoursePage.php?... The lectures are broken up into segments (which you might fi