Mathematically Correct Breakfast
It is not hard to cut a bagel into two equal halves which are linked like two links of a chain.
You may be compelled to ask why anyone would figure out how to do such a thing. I understand why, but cannot explain.
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Something to consider: the nutritional content of a cubic lightyear of cream cheese
It is that time of year to acquire foam balls. Will the strategy work for (a thick-walled hollow) sphere marked into octants, its center being the pivot, continuous curve or rectilinear cuts? You might want to start with apples.
A 1/2 twist cut would be so much cooler. A single continuous slice that can be cream-cheesed, but not separated.