Very Slow Scan Television (VSSTV) by Gebhard Sengmüller is a new television format that we have developed building upon Slow Scan Television (SSTV), an image transmission system used by Ham Radio amateurs. VSSTV uses broadcasts from this historic public domain television system and regular bubble wrap to construct an analogous system: Just as a Cathode Ray Tube mixes the three primary colors to create various hues, VSSTV utilizes a plotter-like machine to fill the individual bubbles with one of the three primary CRT colors, turning them into pixels on the VSSTV “screen”. Large television images with a frame rate of one per day are the result, images that take the idea of slow scan to the extreme.

Source and credit