And tomorrow, my administration will release a new "College Scorecard" that parents and students can use to compare schools based on a simple criteria - where you can get the most bang for your educational buck.

BBC: State of the Union: Obama pledges to reignite economy

"Black holes can bang on space time like mallets on a drum, " she said.

CNN: Cosmic music from dying stars

If doctors make more effort "to counsel patients on what a general healthy-eating diet is like, we can get a lot of bang for the buck, " she added.

WSJ: Study Finds More Benefits From the Mediterranean Diet