| 31. | To help gauge treacherous surfaces, researchers used a slip simulator that measures the traction of shoes and the slipperiness of surfaces.
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| 32. | This is because values that are useful when describing roads, like slipperiness, are not precise concepts and cannot be measured.
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| 33. | Even a small increase in slipperiness of a section of road can increase the accident rate of the section of road tenfold.
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| 34. | The pendulum is also used in the U . S . and elsewhere for determining the slipperiness of roads and airport runways.
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| 35. | Although Becker and Stich won the first two matches, Boris claimed the court's slipperiness caused him to strain his back.
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| 36. | "The greasiness of Hals'paint is always wonderful, the way it celebrates the oiliness, the slipperiness of paint.
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| 37. | And the smaller the tiles, the more grout lines you will have, and these grout lines will help reduce any slipperiness.
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| 38. | He calls it " interactive magic, " but, master of slipperiness that he is, he reveals nothing more.
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| 39. | To help gauge treacherous surfaces, health officials used a slip simulator that measures the traction of shoes and the slipperiness of surfaces.
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| 40. | As temperatures fall toward 0 degrees, frictional heat is conducted farther below the snow's surface, limiting melting and reducing slipperiness.
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