Jake Carlini builds awesome rocket punch cannons using PVC pipes and 3D-printed fists for backyard fun! Get ready for some ...

Manipur's ethnic insurgent groups from both the Meitei and Kuki communities are modifying weapons, many of them looted from ...

This video shows how I make a compact 2" bore air cannon with a coaxial piston valve. To understand how these valves work examine the third animation in the following link: <a href=" I also go into ...