New TV technology opens a world in which touching is believing
The child's hand reaches out tentatively. Years of haranguing ("Keep your greasy fingers off the TV!") have made the screen taboo. But when the child sees that his finger causes the image to change, learns that his touch magically provokes new pictures, sequences, words and diagrams, his hand begins to jab, rub and slap the screen. Curiosity, once aroused, is satisfied by simply touching a picture of what one wants to understand. This process is re-enacted thousands of times every day at the U.S. Pavilion at Energy Expo '82 (a.k.a....
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