The Null Device
Meet Hektor, a Swiss-designed spraycan graffiti robot
, or possibly one of the world's largest portable inkjet printers.
(Note that it's not the largest, as the BBC piece suggests;
I recall a larger version of GraffitiWriter
, one of Hektor's predecessors, mounted on the underside of a van, and used to inscribe dot-matrix slogans on roads.)
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