Guests:

Scott Sumner, the Ralph G. Hawtrey Chair of Monetary Policy at the Mercatus Center at George Mason University, On to discuss Fed Chair Jerome Powell's testimony before Congress.

Charles Reichblum, or "Dr. Knowledge," author of The All-Time Book of Fascinating Facts. 

Dr. Todd Jaeger, a scientist and Global Director for Optics for Heraeus, on to discuss the Lunar Laser Retro Reflector experiment package that was placed on the lunar surface by Buzz Aldrin as we look ahead to the 50th anniversary of the Apollo 11.