Q: I have an item called a “motion teaser.” It includes five heavy silver balls about an inch in diameter. Each is attached to a string and the strings are attached to a wooden frame. You swing one ball so it touches the next one and then they all swing back and forth. However, it stops in about a minute, Aren’t they supposed to keep swinging back and forth by themselves? Every once in a while, I see one of these in an old movie and the balls keep swinging back and forth indefinitely. Am I doing something wrong? I don’t see what the big deal is if you have to start it every other minute. Someone gave me this. I think this it’s from the 1970s or ’80s.
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