[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 ...

In today’s healthy lifestyle oriented world, blowing smoke rings won’t impress too many people anymore. Unless of course you are [NightHawkInLight] and blow them with a vortex cannon and add lasers ...

This DIY Christmas Cannon provides a solution to a problem I didn’t know existed: how to combine explosive firearms with the warmth, generosity, and joy of Christmas. Video after the jump. This ...

If you're looking to send a projectile flying as fast and as far as possible without any explosives, your best bet is to use a vacuum cannon. The mechanics are simple: Get a long cannon, place the ...