A didactic clock integrated into a four metre stainless steel obelisk.

The obelisk is reminiscent of a gnomon found at the centre of a sun dial. The clock itself consists of over 1000 LEDs arranged in a coded sequence of rectangular panels. The clock is an acknowledgment of the late Dieter Binninger's work on the world's first didactic clock which was erected in Berlin 1975. Sadly the Berlin clock no longer exists except as miniature replicas, which makes this clock unique.

Installed at Shepshed High School 2007

The Berlin-Uhr timepiece is based on the principles of quantity didactics and was the first of its kind. The time is calculated by adding the lit rectangular lamps. The top (round) lamp blinks on/off every two seconds. In the upper line of red lamps every lamp represents 5 hours. In the lower line of red lamps every lamp represents 1 hour. So if in the first line 2 lamps are lit and in the second line 3 lamps - its 5+5+3=13h or 1.00pm.  In the third line with tall lamps every lamp represents 5 minutes. There are 11 lamps, the 3rd, 6th, and 9th are red indicating the first quarter, half, and the last quarter of the hour. In the last line with yellow lamps every lamp represents 1 minute.

Displayed time = 13.23 ( 1.32pm)