Wed
13

PORTALS: From Star to Clock…Timekeeping at Ladd Observatory with Michael Umbricht, Ladd Observatory Curator

Wednesday, April 13, 2016

6:30 PM-8:00 PM

Cost: Free and Open to All

Providence Public Library
150 Empire Street
Providence, RI 02903

Auditorium (3rd Floor)

Wed, 2016-04-13 18:30 - 20:00

From Star to Clock…Timekeeping at Ladd Observatory with Michael Umbricht, Ladd Observatory Curator

Starting in 1893 Ladd Observatory at Brown University began transmitting time signals from precision pendulum clocks that were synchronized to observations of stars. The signals were used by local businesses such as jewelers and factories. The signals were also transmitted to the fire stations throughout Providence which sounded signals at exactly noon and 8:30 pm every day."

Caption: The transit instrument of the Bedford Observatory, with observing chair and clock. "A handbook of descriptive and practical astronomy" by George F. Chambers, 1889.

 

Michael Umbricht is the Observatory Curator where he researches the history of science and technology to engage the public with Brown University's historic scientific instrument collection. Prior to this he was the Coordinator of the Cormack Planetarium at the Museum of Natural History in Roger Williams Park for 14 years.


PORTALS is made possible through major funding support from the Rhode Island Council for the Humanities, as independent state affiliate of the National Endowment for the Humanities. The Council seeds, supports, and strengthens public history, cultural heritage, civic education, and community engagement by and for all Rhode Islanders. 

Signups closed for this Event