Joseph Jacobson. Portrait of Dr Joseph Jacobson, one of the developers of electronic ink. Paper coated in this ink can have text downloaded onto it electronically. The digital nature of the ink allows text to be changed so one book can carry many titles. The idea involves coating a sheet with tiny transparent spheres containing minute balls and a dye. When an electric current is applied, the balls, or microcapsules, may rise upwards through the dye and become visible, or sink. By controlling where they rise and sink, text can be created. Jacobson, the Assistant Professor of Media Arts and Sciences at MIT, USA, co-founded E Ink, the company developing this ink.
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