From left to right: Dylan Geil, Denise Kahler, Daniel Kish and Christine Sun Kim.  Photo by Ryan Lash/TED.

Artist and TED Fellow Christine Sun Kim, deaf since birth, talks with Daniel Kish, who lost his sight to cancer aged 13 months, about sound and sound “etiquette.”

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Neuroscientist David Eagleman explains his latest invention, the “versatile extra-sensory transducer,” a vest installed with tiny motors that can convert sound and noise into vibrations on the back, allowing deaf people to hear the world through vibrations.