Birthday (1852) of Nobel physicist Albert A. Michelson. Attain a higher fraction of c today in his honor. pic.twitter.com/0S4Hlt7F0R

— Charles Bergquist (@cbquist) December 19, 2016

I grew up in Cleveland, where the famous Michelson-Morley experiment was performed. A simple stone marker was set near the spot on the CWRU campus. I think there's a grander memorial now.

Over the course of his life, Andrew Carnegie endowed 2,811 libraries and many charitable foundations as well as the internationally famous Carnegie Endowment for International Peace. He also bought 7,689 organs for churches. The purpose of the latter gift was, in Carnegie's words, "To lessen the pain of the sermons."