Science in a Minute 060117 Engineeers Figure Out What Causes Shoe Laces to Become Untied

May 26, 2017 12:59 PM
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Science in a Minute 060117 Engineeers Figure Out What Causes Shoe Laces to Become Untied 1551566
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Science in a Minute 060117 Engineeers Figure Out What Causes Shoe Laces to Become Untied