today we constructed and designed our rockets. we started by making all the the other parts. we made the fins out of cardboard and covered them in duck tape to make them waterproof. we made them diamond shaped. Then we made the nose cone (its a parabola, because we found that its the most aerodynamic shape) by cutting the top of a bottle off, and cutting the neck off of that. We then go our bottle pressurized so that it wont shoot out when we launch it. Then we connected all the parts with hot glue, and reinforced everything with duct tap. We are ready to test launch tomorrow and make corrections.