pullium pullium

14-03-2018
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on a hot summer day mike the line man strung a copper power line from one line to another why did mike leave the line sagged a little

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ncote18 ncote18

14-03-2018

Probably because copper contracts and expands when it is cold or hot, respectively. he added slack to the line so when it gets cold the line does not contract too much and break.

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