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Title: Good idea, very poor design
Review: The idea behind this rocket is excellent: Mix vinegar and soda to generate gas, and launch this rocket into the sky.The problem is the very poor design of the rocket: First, the rocket itself is made of two parts which screw into one another. Unfortunately, the seal between them is bad, so you either have some of the gas leaking out of the seal or, if you try to screw them harder, are liable to break the rocket (both happened to us). Furthermore, the seal between the launchpad and the rocket is poor, so again, either gas leaks or the rocket breaks.
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