History's subjective bent is also a strong theme within Gary's work, and the simple nature of chalk lends itself to his artistic concerns — especially in its suggestion of basic communication, the human hand, education systems and of
easily erasable or altered information.»
Researchers at the University of Tokyo have dusted off some E Ink technology originally developed back in the 1970s to create a new kind of
easily erasable whiteboard technology that can be written on using magnetic pens instead of dry - erase markers.