explode gunpowder. those used at the immediate point of explosion. In the I take this slice from a block of ice and place it in this thirty-five tun gun, the pressures are taken at three points, at hot mold, and in a few minutes, as you see, we get it beauti- the end of the bore, at the vent, and… … selves into the extraordinary small space we find at the gorge center of a shallow copper pan which is inserted at the muz- the ice was subjected to the zle of the gun and carefully pushed down the bore by means of Trélaporte. Is not this a wonderful proof of the yielding hydraulic pressure fora…
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