Popular science monthly . mys trenchand also for the purpose of resistinga rush. The use of this weapon docsnot depend so much on the amountof actual damage which it ac-complishes as it does upon the dis-organizing results in the ranks (;fthe enemy following the grenades arc now proxidefwith chemicals which produce irri-tating or stupefying gases designedto halt a charge or to silence tiieactivity of a trench about to bestormed. The disadvantages are the inabil-ity of the throwers to propel bombsa sufficient distance to do the mosteffective work and the inaccuracyof delivering t
Popular science monthly . mys trenchand also for the purpose of resistinga rush. The use of this weapon docsnot depend so much on the amountof actual damage which it ac-complishes as it does upon the dis-organizing results in the ranks (;fthe enemy following the grenades arc now proxidefwith chemicals which produce irri-tating or stupefying gases designedto halt a charge or to silence tiieactivity of a trench about to bestormed. The disadvantages are the inabil-ity of the throwers to propel bombsa sufficient distance to do the mosteffective work and the inaccuracyof delivering the shots. In actionduring battle it is difficult to followup a correctly-put shot with anothirwhich will be sure to reach the same spot. The grenade is a de\ice which can beniade for throwing small projectiles, andin such cases the gear-wheel describedneed not be used, since speed is not s<jessential. Its use, moreover, will teachimportant lessons in the trajectory oflirojectiles. The device utilizes centrifugal motion. By means of centrifugal force the apparatusshown above throws bombs a surprisingly longdistance. With two such machines, boys canwage battle as long as their ammunition holds out and in this respect resembles the actionof the arm in throwing an object. Itsuse in warfare will effect a wonderfulchange in the handling of this class ofprojectiles. The drawings above show aside view, Fig. i, and a front view. Fig. wooden or metallic frame is pro-vided which comprises six posts, a baseupon which they are mounted, and threetop stringers. Two of these stringers are 395 296 Popular Science Monthly mounted close together to receive a cross-shaft which carries a tubular body fourinches or more in diameter. This tubeis preferably square in cross-section, andthe shaft passes through it midway be-tween its ends. At one side of the tube is a small gear-wheel which meshes with a gear twicethe diameter. The latter gear is mountedon the end of a shaft thirty inches long,wh
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872
