We started off with two water bottles glued together with a pointy. The sail failed and went either left or right.
Next we designed two sails that was curved, one that was tin foil and one that was cloth. We placed two old cut up credit cards as keels at the bottom of the boat as well. It worked better but still was not consistent. It would either go straight or hit the wall most of the time.
Then we tried a roman noodle bowl with a water bottle sticking through a pencil in the middle. The water bottle acted like our sail and yes it went straight but it was really slow.
FINALLY we made another two water bottle boat with a tinfoil sail that was wider and put the keel at the back of the boat and it kept it straight! We tested it in my pool with a hair drier and it went straight. (the clips are not at the top now though, the pencils are glued on)
No comments:
Post a Comment