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A suspension bridge's cables are beautiful to look at, but they also enable the bridge to cross large spans. Make a model ... Tie the center of a 100-cm (about 4 ft.) cable around the middle ...
A suspension bridge's cables are beautiful to look at, but they also enable the bridge to cross large spans. Make a model ... Tie the center of a 100-cm (about 4 ft.) cable around the middle ...
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