Timecode was a group show at Dundee Contemporary Arts in 2009.
Artists included Douglas Gordon, Tatsuo Miyajima, On Kawara,
Ceal Floyer, Christian Stock.

Thomson and Craighead were commissioned to make a new installation, Horizon and accompanying limited edition print for the exhibition. Also included in the exhibition was a Beacon in the form of a railway flap sign.

Horizon is a narrative clock made out of images accessed in real time from webcams found in every time zone around the world. The result is a constantly updating array of images that read like a series of movie storyboards, but also as an idiosyncratic global electronic sundial.

BEACON is a unique mechanical railway flap sign built by Solari of Udine in Italy. As with the online and projected version of BEACON, this mechanical half-flap sign continuously relays live web searches as they are being made around the world presenting them back in series and at regular intervals as an endless concrete poetry.

https://research.gold.ac.uk/id/eprint/3008