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Its "cartridge strength" would be its weight in pounds times its strength in relation to an equal amount of ANFO (the civilian baseline standard) or TNT (the military baseline standard). For example, 65% ammonium dynamite with a 20% cartridge strength would mean the stick was equal to an equivalent weight strength of 20% ANFO.
It is packaged in standard dynamite cartridges of colored wax paper that is marked either M1, M2, or M3 on the cartridge. This marking identifies a cartridge size difference only, since all military dynamite detonates at about 20,000 feet per second, which is equivalent in strength to 60-percent straight dynamite.
Pyrotol was said to cause no ill effects, like headaches, or staining hands or clothing, although the validity of this statement is unknown. A 6-ounce (170 g) cartridge of pyrotol was said to be as powerful as an 8-ounce (230 g) cartridge of dynamite, and came in 50-pound (23 kg) boxes containing 160 cartridges of the substance. [8]
This is a compilation of published detonation velocities for various high explosive compounds. Detonation velocity is the speed with which the detonation shock wave travels through the explosive.
In 1868, Henry Julius Smith of Boston introduced a cap that combined a spark gap ignitor and mercury fulminate, the first electric cap able to detonate dynamite. [12] In 1875, Smith—and then in 1887, Perry G. Gardner of North Adams, Massachusetts—developed electric detonators that combined a hot wire detonator with mercury fulminate explosive.
About 100 workers were in the Los Angeles Times building at 1:07 a.m. Oct. 1, 1910. Then 16 sticks of dynamite exploded at the anti-union newspaper, and people began dying.
A special formulation of dynamite was patented in 1874 by J.W. Willard, superintendent of the California Powder Works in Santa Cruz, California.He called his invention "Hercules powder", [7] a competitive jab at rival Giant Powder Company which had acquired the exclusive U.S. rights to Alfred Nobel's original dynamite formula.
According to reports, it only took 5 seconds for the John A. Brown Co. warehouse and the Lawyers Building to fall to the ground during demolition by dynamite on June 13, 1982.