Last week during Period 8, one of Doc's favorite periods, we were spinning some rulers on a gatorade bottle. We thought it was cool because the ruler could turn all the way around without falling over. In order to make sure the ruler wouldn't fall over as soon as we put it on, we had to make sure the center of mass was placed over the fulcrum which was the gatorade cap. After that, we applied a force to cause the ruler to spin. Due to friction between the cap and the ruler, it did not go as fast or as steady as we had hoped. For funsies, we decided to put a second ruler on top, just to see what would happen. We tried spinning them in different directions , as well as in the same direction, but found no luck either way. The set up of our experiment reminded me of a helicopter, something that uses a lot of physics in order to work. Thanks DOC.
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