Amazon S3 on MSN
How to construct a durable homemade crossbow using PVC pipes
The science experimenters at TKOR construct a rugged and functional crossbow using PVC pipes as the primary structural material.
Amazon S3 on MSN
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 ...
LeafFilter promises to prevent gutter clogs. See how the system performs, its cost, and where it falls short for your home.
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