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Abstract
This paper¡¯s main task is to design a experiment to measure the gas viscosity coefficient. The viscosities of air were measured at room temperature. Experiments are mainly based on the mechanical pendulum motion formula, because of the air resistance the movement of the ball is damper movement. After the theoretical derivation the gas viscosity formula can be educed. According to the formula, the viscosities can be gotten from the pendulum amplitude changes.
Keywords£º Gas viscosity Measurement Pendulum