Talk:Balance spring

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the statement that contains

For this to be practical, the oscillating motion of the balance has to be converted to rotary motion of the gear train by the escapement


ought to read:

the oscillating motion of the balance has to control the rotary motion of the 
 gear train
 This is because the excapement does not drive, but rather controls, the speed of
the gears. hence the name escapement.

I hesitate to make the edit because I dont know if early balance-spring time pieces worked differently. I have seen some clocks where the pendulum drove the gears.

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