This fire-fighting system is designed to ensure that when water lines break and the power grid is out, the city still has a ...

Have you ever wanted to have a metal made fully working cannon made by yourself? I personally didn't expect I would want one, but here we go, making a mini cannon from scratch. #shorts #mitg #cannon # ...

How to Make a Powerful Miniature Cannon - diy Guide - Learn to build a functional diy miniature cannon right in your workshop ...

How exhausting can a 50 pound parachute actually be? Well, for one Stargate SG-1 guest star, the sci-fi series left them with ...