11. This was accomplished by the use of a very slow rotation speed of 16T! 12. A decoupling of generator rotation speed and grid frequency becomes redundant by this means. 13. Each disc rotation speed is set to a particular frequency of the desired note. 14. When a steady rotation speed has been reached, the speed is proportional to fluid velocity. 15. Higher rotation speed is necessary if the liquid would like to enter the next chamber. 16. As the wheel rotation speed accelerates to normal tolerance limits, normal braking pressure is restored. 17. Rotation speed affects price more than you might think.18. Connected to each motor is a 100 : 1 gear system to reduce the rotation speed . 19. The high inertia buffered the changes in rotation speed and thus made power output more stable. 20. Kiln size is typically long / internal diameter, with a rotation speed of around 1 rpm.