We have seen those conventional cannons where there is supposed to be a ball inside that is fired up from the cannon and then it flies all the way to the destination and breaks some bones and walls. That is the true use and purpose of cannon however; as the years progressed many other forms have thus been invented. Have you ever heard about the circus cannon? Well better go up to a circus and see a clown shooting out of cannon.
This guy on the other hand is all set to experiment on a three forms of static structures, one made of hay, the other of wood and the final one out of bricks. The purpose of these structures is to test the strength of vortex of gases that are fired from the cannon. According to the dynamics of the fluid, the term vortex means that within the fluid there is a certain point where pressure is applied and the fluid starts rotating around an axis, either curved or straight. The fluid here is water and the pressure is applied through a number of dangerous gases. The man not only successfully took down the hay and the wood structures but he was also victorious when it came to take down the walls of brick.