Mathematically Correct Breakfast, Knotted Bagel

Previously submitted:<p><a href="http://news.ycombinator.com/item?id=982249" rel="nofollow">http://news.ycombinator.com/item?id=982249</a>

Warning: when you do this you get funny looks from your wife and crumbs everywhere (not to mention having to make sure to get bagels that are not pre-cut). And when you are done you want a bagel, but it wont fit in the toaster...