SDxCentral

Brazilian National Observatory enhances national timekeeping with Adtran’s Oscilloquartz super high-performance optical cesium clock

National timekeeping institution sought to enhance stability and precision to support critical national and international scientific work Adtran’s industry-first OSA 3300 SHP with optical pumping ...
The Business Journals

Time has run out on the Naval Observatory's Clock House. Here's the $101M plan to build a new one.

The new Master Clock Facility on the U.S. Naval Observatory campus will be constructed very close to the existing Clock House. Courtesy Wiley & Wilson/Burns ...
DePauw

Observatory Instruments

McKim Observatory still houses many of its original instruments, including a 9.53 inch Clark Refractor telescope, a meridian transit telescope, and a gravity driven chronograph. Missing from the early ...
The Washington Post

Time, elements take their toll on Naval Observatory clock

Can you learn what happened to the clock at the entrance to the Naval Observatory on Massachusetts Avenue NW? It sat there in presumably broken condition for many weeks and then disappeared altogether ...