How closely must the temperature be controlled if the clock is not to gain or lose more than 1s a day

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A clock with a brass pendulum shaft keeps correct time at a certain temperature, How closely must the temperature be controlled if the clock is not to gain or lose more than 1s a day
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Sep
A clock with a brass pendulum shaft keeps correct time at a certain temperature, How closely must the temperature be controlled if the clock is not to gain or lose more than 1s a day A clock with a brass pendulum shaft keeps correct time at a certain temperature How closely must the temperature be [...]
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