[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, but what ...

[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, but what ...

With a trip to the drug store, the grocery store, and the hardware store, you can make a cannon that shoots potatoes over a hundred yards. All you need to do is know a little about gas laws. And ...

CAMP OLIVAS, Pampanga — It isn’t just imported firecrackers that are easing out locally made fireworks from the market. An improvised cannon made from PVC pipes and fueled by denatured alcohol is ...

Metro police chief orders ban on PVC cannons - December 29, 2006 | 12:00am Director Reynaldo Varilla, chief of the National Capital Region Police Office (NCRPO), ordered yesterday a ban on the use of ...