Show Making Shrapnel Were the average layman able to grasp the staggering complexities of ot chemical and mechanical details Involved Involved involved In In- In the making of a shrapnel shell he would be he amazed For instance Instance instance In in- stance gages are required to manufacture manufacture manufacture man man- the time combination time aid aad percussion percussion per per- fuse for three quarter Inch shrapnel The powder used must have havethe havethe havethe the correct burning time or the explosion explosion explosion ex ex- w will Ill occur too soon or too late lute It Is impossible to obtain two powders powders powders pow pow- ders with the same burning time h hence nce the burning time has to be determined on each lot oi of powder This formerly required one one and und one half hours now it takes takes' five minutes Likewise tho the time consumed in blending powders powder's has been reduced from 16 hours to 15 minutes Popular Science Monthly |