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Diagram
  1. Diatomaceous earth (or any other type of absorbent material) soaked in nitroglycerin.
  2. Protective coating surrounding the explosive material.
  3. Blasting cap.
  4. Electrical cable (or fuse) connected to the blasting cap.
Preparation of dynamite during the construction of the Douglas Dam, 1942.

Dynamite is an explosive made of nitroglycerin, sorbents (such as powdered shells or clay) and stabilizers. It was invented by the Swedish chemist and engineer Alfred Nobel in Geesthacht, Northern Germany and patented in 1867. It rapidly gained wide-scale use as a more powerful alternative to black powder.

Today, dynamite is mainly used in the mining, quarrying, construction, and demolition industries. Dynamite is still the product of choice for trenching applications, and as a cost-effective alternative to cast boosters. Dynamite is occasionally used as an initiator or booster for AN and ANFO explosive charges.