Blackheath, England, United Kingdom at 1:39pm GMT.
cpchannel's Sunday February 5th, 2012
The world’s first tidal-powered moon clock, which measures astronomical and tidal data has been installed at Trinity Buoy Wharf (TBW), East London, on the full moon, at 20.15 on Friday 22nd October 2010. The 5-metre high clock has a ‘station clock’-style steel housing and two faces each featuring 5,000 LED lights encased in 1.2m-wide glass rings that electronically display local Alunatime. Alunatime is the name for the illumination of light, which flows slowly and continuously around the structure in a clockwise direction. TBW’s moon and tide time has been calculated by Proudman Oceanographic Laboratory from the harmonic analysis of river geography, local tide gauges and astronomical algorithms. Viewers can follow the phase and position of the Moon, and the height of the tides by observing the illumination of Alunayime’s three rings.