Picture two dancers conquering a partner dance on the dance floor. I know you've seen it. Maybe they were dancing swing, salsa, tango, whatever. But they were good. They were a marvel to watch. Wow. They push off each other, they pull in each other. One leads, the other follows. They move as if they are two, yet one. They appear so natural that they literally are the music...
Read MoreHave you ever become so frustrated with knotted string or laces that you pull at them wantonly in hopes of untying them only to find you have made the knot tighter? A toy called a Chinese Finger Trap demonstrates this principle well...
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