This winter break, I took a trip to China. Between the wild and wonderful adventures that I partook in, my uncle would take the family out to a fancy restaurant. These places would serve the most mouthwatering Chinese cuisine along with a dash of alcoholic drinks if one preferred (don't get the wrong idea).
The food is set on a lazy susan sort of contraption in the center of the table to facilitate ease of access to all the food without having to pass the heavy and precariously filled dishes of soup across the table by hand.
The food is set on a lazy susan sort of contraption in the center of the table to facilitate ease of access to all the food without having to pass the heavy and precariously filled dishes of soup across the table by hand.
Spinning the food requires a torque applied by the hand. Notice how I apply the torque towards the edge of the glass and not at the center, for we discovered (some still haven't) that applying a force to an axis of rotation does nothing. Stopping the glass also requires torque, in this case, it is the friction from the contact between my hand and the glass that produces a force that opposes motion, allowing me to enjoy the sumptuous food once it has stopped in front of me.
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