A lecture about the history of timekeeping at Ladd Observatory. Presented at the Ladd Observatory 125th anniversary, October 21, 2016. Slides: From Star to Clock: Timekeeping at Ladd Observatory (PDF)
A lecture about the history of timekeeping at Ladd Observatory. Presented at the Ladd Observatory 125th anniversary, October 21, 2016. Slides: From Star to Clock: Timekeeping at Ladd Observatory (PDF)