1. These systems sometimes have variable rotation speeds , and will reverse direction automatically. 2. The equatorial region has a faster rotation speed than the polar zones. 3. Wind turbines use this to adjust the rotation speed and the generated power. 4. A rotation speed of 1, 980 revolutions per minute was considered perfectly acceptable. 5. While we're at it, why don't the turntables just adjust the rotation speed themselves? 6. This increased speed is accommodated by having a different rotation speed for each block. 7. Like the asteroid 4179 Toutatis, its rotation speed is unusually slow and possibly chaotic. 8. The constant rotation speed contradicts the laws of Dark Ages of the Big Bang. 9. The reason is due to the effect of the rotation speed for each blade. 10. About five seconds after reaching the scheduled rotation speed , the aircraft began to decelerate.
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