Homemade Cannon
Our neighbor's
boys had some cherry bomb firecrackers that their older brothers had bought for
them. This was a time when fireworks were legal in Pennsylvania. I was visiting
them and they were looking for an ingenious way to set them off. The loud noise
wasn’t enough for them. Why waste a cherry bomb and just see it explode. An idea came to
them as they started rummaging around in a scrap pile. They had already put a
firecracker under a can and watched it fly into the air with the force of the explosion.
Pulling an
old metal bedstead out from the other items in the pile, they carried it to a
level place and pushed one end into the soft ground at a slight angle, while
the opposite open end aimed skyward. They dropped a lit cherry bomb into the tube,
It was cool to hear the ringing peal of thunder and see the flying paper and smoke come out of the end of the tube. It
was impressive, but not impressive enough.
They found
the large tomato can that they had used earlier. It was just small enough to slide down the tube snugly. They lit another cherry bomb,
dropped the explosive charge and the can quickly followed down the bedstead tube. I could hear the metal scraping metal as it made its way to the bottom.
Boom! The
can flew nearly twenty feet into the air. I thought it was great, but of course they wanted more.
Retrieving
the can, they filled it nearly half full with the pea –sized gravel and small stones. They dropped
it down into the cannon following after the lit firecracker. (That was what they were calling
the bedstead by now.)
BOOM!. The percussion was louder than before. The
weight of the can must have caused a greater compression before the can was forced out. It shot about another ten feet higher than the previous shot.
The gravel flew out of the can. Some it ripped leaves from the branches of the oak trees overhead. The scattering gravel fell back onto our heads, some down the driveway, and some hit their dad’s pick up truck parked near the house.
The gravel flew out of the can. Some it ripped leaves from the branches of the oak trees overhead. The scattering gravel fell back onto our heads, some down the driveway, and some hit their dad’s pick up truck parked near the house.
Although
they still had several cherry bombs, they wisely chose to save them for another
day and the cannon went back to the scrap heap.