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.

A pair of Colorado men got creative in Louisiana, using an air compressed cannon in a failed bid to launch drugs and tobacco onto the grounds of a federal prison. Jose Francisco Herrera Munoz ...

Rheinmetall says the gun has an effective range of 3 kilometers ... December asked KNDS France to develop similar mobile air-defense and anti-drone equipment, with an order for 30 Serval armored ...

Two men tried distributing tobacco and meth to inmates at a Louisiana prison by hurling it over a security fence with an air cannon, cops said. Getty Images/iStockphoto Two Colorado men are ...