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How to build a high performance rocket launcher using PVC pipes

The science experimenters at TKOR demonstrate how PVC pipes can be engineered into a powerful launcher capable of firing ...
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Build a mini RPG launcher without spending much

The science pros at TKOR show how to build a mini RPG launcher without spending much. Congress clinches $1.2T funding deal for DHS, Pentagon, domestic agencies Polar vortex update: Map shows states ...