| 3. Now, using scissors cut
the loop lengthwise along the centerline. What do you
end up with? Instead of making two separate loops, you
have made one single loop that is longer than the original
one!
4. Next, try making another paper loop. This time
give one end two twists, and tape the ends together
as before. This is a double-twist loop.
5. Now cut the loop along the centerline again. How
does this one turn out? When cut, the loop with two
twists becomes two loops that pass through each other.
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