water rocket

Quite easy to make. Difficult getting a bung the right size.



Movie with detailed instructions on how to make a water rocket



more water rockets
how to make a staging mechanism
stomp rocket
splicing plastic bottles
instructables rocket
diet coke & mentos
more ambitious
firehose jet-pack
lifting a car with firehoses
big bang rocket
zing ring
how to make a chinese repeating crossbow




popgun made from two plastic bottles, packing adjusts clearance of smaller one; barrel made from rolled up paper, used as former for paper projectile


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my email is davidvwilliamson@hotmail.com
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