Photo: Pichi Chuang/Reuters
Yan Ching-hong, a quadriplegic patient, is shown browsing the Internet using a pacifier-shaped switch invented by Luo Ching-hsing, a professor at National Cheng Kung University, in Taiwan. The switch, which connects to the computer via a USB port, uses Morse code to translate long and short presses into keyboard commands. Ching-hong has become so adept that he can type out messages to his Facebook friends at a speed of 50 words per minute.
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