Show EXPLOSION BY MUSIC vibration of 0 G string of a blass viol explodes iodide of nitrogen one of the most dangerous of all explosives plo is a black powder called iodide of nitrogen when it is dry the sli slightest touch will often cause it to explode with great violence there appears to he be a certain rate of vibration which the compound cannot resist in experiments to determine the cause of its excessive explosiveness explosive nes new some damp iodide of nitro nitrogen 0 pil was rubbed on the fai rings strings of a bass viol it is known says youths companion that the strings of such bucl an instrument will vibrate when those of a similar instrument ment having haring 0 an equal tension arc played upon in this case after the explosive had become thoroughly dry upon the strings another bass viol was brought near and strings were sounded at a 1 certain note the iodide on the prepared instrument exploded it sound wa was found that the explosion occurred only when a rate of vibration of sixty per second was communicated to the prepared strings vibration of the 0 string caused an explosion while that of the E string had bad no effect |