Check Valve from bottles and a table tennis ball
ever wanted to presurize your water bottle rocket and couldn’t find anything to stop the air from going out? ever wanted to transfer water or air from one place to another the easy way ? well you better try this !
the idea + materials
the whole idea behind it is to easiely transfre air or water to one direction While stopping them from going to another, that way you can have a brake in the middle of the transfer without having to hold a folded hose or stick your thumb up some hole (:p).
how does it work ?
well it’s quite simple, when transferring the air (or water) pushes the ball up (thats why we use a really light ball), passes around it and gets out the other end. when air (or water) tries to go the other way the ball is pressed to t…
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