Well, today we flew our hot air balloons that we built last class. Our balloons were made out of tissue paper and glue. We launched our balloon 3 times today. When we built them, we had about 50 minutes of time and we could only use tissue paper and glue. After we launched it once, we repaired the holes and launched it again. After that, we decided that we could make it stay in the air even longer so we added some paper clips to the bottom rim of the balloon to weigh it down a bit. Those were our revisions to make our balloon better. Our balloon flew the highest then. After doing that, we could've made it better and better, making more revisions or maybe even a completely new balloon. Doing this would be an example of the design process being circular and our devices being ever changing in engineering.
This is our first attempt at flying our balloon.
This is our second attempt, with the holes repaired a little.
This is our third and last official attempt with the paper clips in.
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