Tags: Weapon.
The explosive harpoon is a device used by whalemen to kill whales efficiently and without poison. As soon as the harpoon is thrown into the whale and fastened to it the wooden pin is broken by the power of the whale pulling upon the tow-line attached to the harpoon. This causes the fluke of the harpoon to open or turn upon the iron rivet and the rivet will come in contact with the vial and break it producing friction cause the powder to explode.