PopSci 5-Minute Project: How to Make a CD Dumbell

PopSci 5-Minute Project: How to Make a CD Dumbell

PopSci 5-Minute Project: How to Make a CD Dumbell

Bjorn Carey demonstrates how to pump you up (with an eye toward reusability) br

User: Popular Science

Views: 98

Uploaded: 2013-04-17

Duration: 05:42

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