Here's a physics professor who proves - I'm not kidding here, bunky, proves - that the cord on your iPod earbuds gets tangled up in knots.
"The way that you get a knot is the string has to bend back on itself, coil back on itself," Smith said.
[From Tangled cord? It's not just an aggravation, it's science -- chicagotribune.com]
Who woulda thunk?
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