
in reply to air guns and air cannons, personally i never played much with either but in my younger days i did make a heck of a carbide cannon out of the old milk jugs . we used to mount this contraption between two stakes and chain it down angle it like a mortar put about a gallon of water in it add a cup of carbide, tamp the lid closed , we had a tiny nail hole punched in the back, let the carbide and water mix for a bit then , touched a wick or lighter to the flash hole and kaboom!!!!,lid would fly aproximately 600 yards, needless to say the neighborhood was very unappreciative, but we liked noise, tooo bad the neighbors and police didn't, i'm thinking of trying it again but having trouble finding carbide in quantities since the coal mines moved out of N.E. PA here, the miners used to wear carbide lamps on their helmets when they worked under ground, i have several old lamps my granddad used but i have given therm to my son who collects old mining articles from around our area