For those interested in 25 hours of brain food, here is a 25 video playlist of hour long lectures from MIT's Open Course Ware class, "Atomic and Optical Physics I."
Enjoy!
https://m.youtube.com/playlist?list=...kzhqq9c5cHCK32
Enjoy!
https://m.youtube.com/playlist?list=...kzhqq9c5cHCK32