As the thread pauses in its endless loop, the pen clicks down onto it, making a dot of color. The dots then wend their way through the frame, occasionally making patterns that are just shy of ...

A printer that uses hammers and a ribbon to form images from dots. Used to print multipart forms and address labels, the tractor and sprocket mechanism in these devices handles thicker media ...

New version: Voyager pictured Earth as "a mote of dust suspended in a sunbeam" It is unquestionably one of the greatest space images ever. The "Pale Blue Dot" picture of Planet Earth was acquired ...