18K views · 183 reactions | Watch: Playing music on a dot matrix printer Explanation: The printing head of a dot matrix has several pins. In this case, the head has been converted into a MIDI-compatible sound generator, which takes signals from an external device. Each sound causes the pins to oscillate at a different frequency, producing music. | Khaleej Times | Facebook

May 7th this year is National Skilled Trades Day! This day honors those in who work in trade professions and their skills that help build and benefit society. For today, Howard used an antique printing press to letterpress print a halftone of an image of a more modern press, highlighting the skilled trade of printing. This halftone shows a photograph a printer operating a Little Giant printing press that was made in the 1940s. This was printed with reflex blue rubber base ink using our Washingto