Canon obusier

Okay kiddo, so a canon obusier is a big gun that shoots heavy things really far away! It's like a super powerful sling shot, but instead of rocks, it shoots big metal balls or explosive shells.

Now, the obusier is a special kind of cannon that can shoot those big metal balls and shells at a really high angle. This means that it can shoot over tall walls and obstacles to hit things that are hiding on the other side.

The canon obusier was actually used a lot in wars a long time ago, like during the medieval times. Armies would use them to attack castles, because they could shoot over the castle walls and hit the soldiers inside.

So basically, the canon obusier is a giant gun that shoots heavy things really far away and over tall obstacles, making it a powerful weapon in battles.