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Palm cooling does not improve running performance

C M Scheadler1, N W Saunders, N J Hanson

  • 1Health and Exercise Science, The Ohio State University, Health and Exercise Science, Columbus, USA. devor.3@osu.edu

International Journal of Sports Medicine
|February 28, 2013
PubMed

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If the temperature of an object is changed while it is prevented from expanding or contracting, the object is subjected to stress. The stress is compressive if the object expands in the absence of constraint and tensile if it contracts. This stress resulting from temperature change is known as thermal stress. It can be quite large and can cause damage. To avoid this stress, engineers may design components so they can expand and contract freely. For instance, on highways, gaps are deliberately...
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San Francisco's Golden Gate Bridge is exposed to temperatures ranging from -15 °C to 40 °C. At its coldest, the main span of the bridge is 1275 m long. Assuming that the bridge is made entirely of steel, what is the change in its length between these temperatures?
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