I found this link from the Presurfer, and it's pretty darn cool"¦ watch how an ordinary drawing suddenly gets animated to explain physics! Click here to view.
Mangesh co-founded mental_floss in 2001 and previously served as Editor-in-Chief of the magazine. He's currently Chief Creative Officer.
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The duffel bag is named for Duffel, Belgium, where the cloth used in the bags was originally sold.