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How humans see
Combining 3D CGI graphics with a real life story, this clip questions what 'sight' really is and where it happens. The clip emphasises that what we see is a picture created by our brain based on nerve impulses from our eye. The story unfolds to show a man who has been blind for 25 years who can now 'see' well enough to climb. This is a result of a new piece of technology that turns electrical data from a camera into impulses sensed by his tongue. Using this bit of kit, we seem him climbing and playing with his children.
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