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I can't quote the exact dimensions. But I know of a device in routine use for internal

observation of the human digestive system. It encloses a light source, a video camera,

a battery, and a radio transmitter, in a capsule that's easily swallowed by the patient,

and then transmits views of the inside of the stomach and intestines out to monitors

in the examining room. Now THAT's small !

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10y ago
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