8
![8](https://watchprofessoracademy.com/wp-content/uploads/2023/06/IMG_4674-2.jpg)
How many revolutions per second does a spring drive glide-wheel make?
The IC and quartz oscillator timing package connected to the coil system monitors the speed of rotation of the glide wheel, feeds electricity back to the electromagnets, which then exert a braking force on the glide wheel to it rotating exactly eight revolutions per second.