Presented by: Professor Judah Levine, JILA, NIST

Abstract: I will discuss the standards of time and frequency and how these standards have evolved over the centuries. I will present the current definitions of time and frequency and how these definitions are likely to evolve in the coming years.

The Department of Physics proudly presents the Saturday Physics Series, lectures geared toward high school students and adults to highlight the exciting research and practical potential of physics. 

All lectures are free and open to the public.