On Time
http://americanhistory.si.edu/ontime/The Smithsonian Institute's exhibition on the changing ways we have measured, used, and thought about time over the past three hundred years.
Submitted in section: Time: Horology: On Time
The Smithsonian Institute's exhibition on the changing ways we have measured, used, and thought about time over the past three hundred years.
Submitted in section: Time: Horology: On Time