No real-time-clock needed—just have the ESP32 buzz the Internet for an accurate update on the regular! As for the display itself, three gauges show hours, minutes, and seconds on aviation-like ...

NIST-F4 is a cesium fountain clock, which is considered the cream of the crop — there are fewer than 20 of its kind operating in the entire world. Fountain clocks are not constantly running like ...

The clock had not appeared in the original 1956 plans that Eero Saarinen, the Finnish American architect, presented to Howard Hughes, the owner of Trans World Airlines.