Pulsar clock

A pulsar clock is a clock which depends on counting radio pulses emitted by pulsars.

Gdańsk, pulsar clock display.

Pulsar clock in Gdańsk

The first pulsar clock in the world was installed in St Catherine's Church, Gdańsk, Poland, in 2011.[1] It was the first clock to count the time using a signal source outside the Earth, other than sun dials. The pulsar clock consists of a radiotelescope with 16 antennas, which receive signals from six designated pulsars. Digital processing of the pulsar signals is done by an FPGA device.[2]

Pulsar clock in Brussels

On October 5, 2011, a display showing the exact time of the pulsar clock was installed in the European Parliament in Brussels, Belgium.[3]

References
  1. "World's most accurate clock to be built in Gdańsk". Polska Agencja Prasowa. 2010. Retrieved 2012-03-20.
  2. "Gdański Zegar Pulsarowy". Muzeum Zegarow Wiezowych. 2011. Archived from the original on December 13, 2011. Retrieved 2012-03-20.
  3. "Gdański Zegar Pulsarowy w Parlamencie Europejskim". Gdanski Park Naukowo Technologiczny. 2011. Archived from the original on 2013-06-21. Retrieved 2012-03-20.


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