- My 1st clock concept is to replace the needle on the watch by little balls. So on the watch there are three little balls. Each ball represents the second, minute and hour.
- My 2nd clock concept is make a swinging ball and count how many times has it swing. It swing once per second. There is a screen on the top of the equipment and shows the number that the ball swings.
- The third one is a step. A ball would climb up one step per minute and fall down again after 60 minutes.
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