| 31. | Moving the bob up reduces the length of the pendulum, reducing the pendulum's period so the clock gains time.
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| 32. | In most pendulum clocks the rate is adjusted by moving the bob up or down on the pendulum rod.
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| 33. | They may bob up into the world of the forms, but at other times enlightenment is hidden from them.
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| 34. | The man in drag then dances about briefly, making sure that his penis bobs up and down in the air.
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| 35. | The flight is weak and erratic and the body of the butterfly bobs up and down as it beats its wings.
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| 36. | Intrinsic value is often impossible to determine _ and market value can bob up and down along with a star's reputation.
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| 37. | The heads of the birds bob up and down in a fluid rhythm as the geese feast on the park's grass.
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| 38. | Its orbit is also tilted a little, causing it to bob up and then down once each year through Earth's orbital plane.
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| 39. | For example, as Faith's speed builds up while running, the rate at which the camera bobs up and down increases as well.
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| 40. | The little girl's soft brown hair is gathered on top of her head, and it bobs up and down with each move.
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