tensil strength
a given weight of spider silk is five times as strong as the same weight of steel.)
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Uploaded on September 22, 2016
Taken on September 13, 2016
tensil strength
a given weight of spider silk is five times as strong as the same weight of steel.)
337
views
7
faves
0
comments
Uploaded on September 22, 2016
Taken on September 13, 2016