 | 1823 - 616 pages
...balls thrown by hand did not penetrate so far. ' The mortar was then elevated to 75°, and, with two ounces of powder and 42 balls, made nearly the same...the meadow was only increased to about three inches. ' p. 21. . Sir Howard was the first person who bestowed on this question a combination of scientific... | |
 | English literature - 1822 - 520 pages
...nearly the same range as before ; but the spread was increased to about 40 yards, so that it was very difficult to hit the surface aimed at. Several balls...meadow was only increased to about three inches." (Douglas's Observations, p. 23.) This is very decisive ; and much more of what is advanced by this... | |
 | 1823 - 622 pages
...nearly the same range as before; but the spread was increased to about 40 yards, so that it was very difficult to hit the surface aimed at. Several balls...but still so trifling as hardly to be measured; the ball* did not go through the'cloth, and the penetration on the meadow was only increased to about three... | |
 | William Laxton - Architecture - 1847 - 460 pages
...far. The mortar was then elevated to 75°, and with two ounces of powder and 4 2 balls made nearly the range as before ; but the spread was increased to...meadow was only increased to about three inches." Secondly, to determine the dimensions of the balloons necessary to raise the weights proposed by Mr.... | |
 | Sir Howard Douglas - Fortification - 1859 - 364 pages
...the balls thrown by hand did not penetrate so far. The mortar was then elevated to 75°, and with two ounces of powder and 42 balls made nearly the same...the meadow was only increased to about three inches. force of a ball and cube of the same weight be the same, yet the surfaces upon which the resistance... | |
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The mortar was then elevated to 75°, and with two ounces of powder and 42 balls made nearly the same range as before ; but the spread was increased to about 40 yards, so that it was difficult to hit the surface aimed at. Several balls did, however, at... 