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Nodding and shaking of head are common means of indicating assent or demural.
People with their eyes closed, or with their head in a bag, or blind, or behind a sofa, or looking at something distracting, cannot see nodding or shaking of head.
Person has headpiece fitted, mounted with two bells,
viz. a high pitched bell oriented mouth-forward with clapper constrained to swing in a horizontal plane, and low-pitched bell mounted vertically with clapper constrained to swing forward and backwards.
Henceforth, nodding will be accompanied by low pitched sounds, and shaking of head accompanied by high pitched sounds.
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//common means of indicating assent or demural// |
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Not completely common. I had a Bulgarian guy working for me once, and it took quite some time to get used to the fact that in Bulgaria a head-nod means "no", whilst a head-shake means "yes". |
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Also, we really need full three-axis sensing. For instance, there is the Indian head-wobble - tilting the head back and forth about an axis that runs roughly from the nose out through the back of the head. |
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Bulgarians can wear modified headsets with the bells oppositely oriented. |
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Why would this be necessary? Doesn't the rattle tip
you off? Or is that only me? |
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I think high pitch for yes and low pitch for no would
make more sense. |
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