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Granular convection is a phenomenon where granular material subjected to shaking or vibration will exhibit circulation patterns similar to types of fluid convection. [2] It is sometimes called the Brazil nut effect , [ 3 ] when the largest of irregularly shaped particles end up on the surface of a granular material containing a mixture of ...
Actress Katharine Hepburn (1907–2003) had an essential tremor, possibly inherited from her grandfather, [93] that caused her head—and sometimes her hands—to shake. [ 94 ] [ 95 ] [ 96 ] The tremor was noticeable by the time of her performance in the 1979 film The Corn Is Green , when critics mentioned the "palsy that kept her head ...
A classic symptom is a characteristic fine tremor in the hands, which is traditionally described as a "pill-rolling" action of the hands, [3] but Parkinsonian tremor may also affect the arms, chin, lips, legs, and trunk, and can be markedly increased by stress or emotion. Onset is generally after age 60.
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A joy buzzer (also called a hand buzzer) is a practical joke device that consists of a coiled mainspring inside a disc worn in the palm of the hand. When the wearer shakes hands with another person, a button on the disc releases the spring, which rapidly unwinds creating a vibration that mimics an electric shock to the unsuspecting victim.
Here is a compilation put together in February that exemplifies Trump's "pull" and forceful style of handshake:
The Manhattan Soccer Club endorsed the elbow bump as the safe alternative to hand-to-hand contact. At this point the MSC Board and the coaching staff would recommend that players not shake/touch hands with opponents after the games. The safest thing to do is to touch elbows. The coach or manager can explain this to the other team prior to the game.
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