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Like most construction materials, steel, which rails are made from, expands when air temperature increases. When this movement is restrained by the anchorage, which holds the rail and the sleeper (the rectangular supports for the rails) in place, internal stresses build up, and compression buckles or kinks the rail.
Andrea ALATAN
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When the earth the moon and the sun are in line what can occur?
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The core
Which layer of the sun do sunspots occur?
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When and why does earth shine occur?
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When the earth the moon and the sun are in line what can occur?
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