On Friday, after I had tennis practice and some of my friends had spring musical rehearsal, we went to the Punahou Carnival. None of us can drive (unfortunately) so we decided to take the bus. It's not like there's a lot of parking at the carnival anyway. We waited for about an hour for the number four bus to come and when we finally got on, it was packed. After nearly losing my balance several times, I turned to Mark and said, "Hey! Doc should take us to ride the bus as a field trip!" If you aren't sitting or holding on to something when the bus accelerates from a stop, you will probably lose your balance and fall backward. The same occurs when the bus stops, except you would fall forward. NEWTON'S FIRST LAW.
When we finally arrived at the carnival, we ate and then decided to go on the zipper. The line was SUPER long, so we cut behind some fellow Iolani-ers. Then it was finally our turn. We actually did not flip that much because one of my friends was freaking out and would not let us rock the cage (sadly) but it was still really fun :) I think the most we flipped in a row was three or four times. Flipping forward was the worst because the forces acting on your body made you lunge forward, and your head hit the top of the cage. (which is padded)
I remember in 8th grade, we learned a bit about roller coasters, and in a video, the engineers of a certain coaster were describing how they had to calculate what angle the seats were so that the passengers would not pass out. Remembering this made me wonder if the shape of the zipper cages was calculated so that the riders legs are at a particular angle. I guess if the knees are too bent, a person could pass out? I wonder.
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