You don’t need any of that chemical nonsense to just have fun, though, as this compressed air cannon from [OtisLiu153] demonstrates. The build uses PVC pipes for both the barrel and the air tank.

[NightHawkInLight] a.k.a. [Ben] recently built an awesome high power air cannon out of PVC pipe. PVC air cannons are great, and everyone should build one of these at some point in their life ...

The Army is maturing technology for a cannon capable of firing hypervelocity projectiles for the air defense mission, according to the director of the service's Rapid Capabilities and Critical ...

51-year-old gym owner Cannon Sullenberger disappeared Feb. 16-17, leaving behind his dogs. Search efforts now span 44 square miles with K-9 units and drones. Elon Musk And Karoline Leavitt Join ...