Langley Observation Clock, Pittsbugh, Pennsylvania
Posted by: 
sherpes
N 40° 26.706 W 080° 01.008
17T E 583378 N 4477624
On the shore of the head of the Ohio River, between the Steelers football stadium and the Science Museum Center
Waymark Code: WM4RAA
Location: Pennsylvania, United States
Date Posted: 09/23/2008
Views: 39
The title refers to the work of Samuel P. Langley. In 1870, he directed the Allegheny Observatory, created the Allegheny system - a standardized sysstem of measuring and disseminating accurate time. Langley used the observatory telescope and astronomical observations to set the time on a specifically designed clock. Using telegraph wires, he connected the observatory clock to a highly visible clock located at Pittsburgh's city hall on Smithfield street. By the end of the year, 42 railroads were provided a standard time through this system.
(from plaque placed next to sculpture)
Title: Langley Observation Clock
Artist: R.M. Fischer
Media (materials) used: metal
Location (specific park, transit center, library, etc.): North Shore Park
Date of creation or placement: 1/1/2007
|
Visit Instructions:To help give a different perspective and to better the waymark for future visitors please tell us about your visit and upload a favorite photograph you took of the waymark.