Precision time is ubiquitous today thanks to GPS and WWVB. Even your Macbook or smartphone displays time which is synchronized to the NIST-F1 clock, a cesium fountain atomic clock (aka the ‘Atomic ...

4. The Altgeld Library Grandfather Clock: The Altgeld Library Grandfather Clock was made by the Self-Winding Clock Company of New York in the 1890s. Before the Master Clock took over, the Altgeld ...

The root of the myth comes from the supposed material of the clock faces, often erroneously said to be of opal or “solid opal.” The appearance of this claim can be traced back to at least March 7, ...