h a l f b a k e r y
non-lame halfbakery tagline
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An air bladder fills with air and
raises the weaer's arm, pressurized
by constant head nodding. Head
shaking releases air lowering the
arm. The inflation pump is located
under the chin disguised as a neck
beard or oversized bow tie. The
deflation valve is opened and closed
by the quarter
rotation of the head.
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||Brilliant. The vigorous nodding conveys the impression of
understanding, so the professor is more likely to call on you
so as to hear your insightful question.