1. A FOLDABLE ARTICULATED EXPOLSIVE STRIP ADAPTED TO BE EXPLODED UNDERWATER IN A VERTICAL LINE POSITION, COMPRISING: A PLURALITY OF DISCS ARRANGED IN A LINE; RESILIENT MEANS PASSING THROUGH THE APPROXIMATE CENTER OF EACH OF THE DISCS AND HOLDING EACH DISC IN CONTACTING RELATION WITH ITS ADJACENT DISC, SAID RESILIENT MEANS BEING TENSED AND EXTENDING BEYOND SAID STRIP AT EACH END; MEANS ADHESIVELY AFFIXED TOEACH FACE OF THE DISCS AND HOLDING THE RESILIENT MEANS IN TENSED CONDITION, SAID ADHESIVELY ATTACHED MEANS BEING IN SECTIONS EXTENDING THE DISTANCE TO TWO DISCS, SAID SECTIONS BEING OPPOSITELY STAGGERED WITH RELATION TO EACH OTHER TO PROVIDE CONTINOUS ATTACHMENT OF THE DISCS BY MEANS OF THE ADHESIVE SECTIONS, THROUGHOUT THE LENGTH OF THE STRIP; MEANS ATTACHED TO ONE END OF THE RESILIENT MEANS THREADED THROUGH THE DISCS TO DETONATE SAID STRIP; AND MEANS ATTACHED TO THE OTHER END OF SAID RESILIENT MEANS TO SERVE AS A DETERENT TO DESCENT OF THE STRIP THROUGH THE WATER AND TO EXTEND THE STRIP TO A VERTICAL LINE POSITION.