Question

Write a short note on dynamite.

Answer 1

An explosive (or explosive material) is a reactive substance with a large amount of potential energy that, if released quickly, can cause an explosion, usually accompanied by light, heat, sound, and pressure. An explosive charge is a calculated amount of explosive material that can be made up of only one ingredient or a mixture of at least two ingredients.

Complete answer:
Nitroglycerin, sorbents (such as powdered shells or clay), and stabilizers make up dynamite. Alfred Nobel, a Swedish chemist and engineer, created and patented it in Geesthacht, Northern Germany, in 1867. It quickly became popular as a more potent alternative to black powder.
The mining, quarrying, building, and demolition sectors are the primary users of dynamite today. For trenching applications, dynamite is still the product of choice, and it is occasionally employed as a cost-effective explosive booster for ANFO charges.
Immanuel Nobel, Alfred Nobel's father, was a businessman, engineer, and inventor. In Stockholm, he built bridges and buildings and developed Sweden's first rubber industry. His building work motivated him to look for new blasting techniques that were more successful than black powder
Alfred was sent overseas for two years at the age of seventeen, meeting Swedish engineer John Ericsson in the United States and studying in France under renowned scientist Théophile-Jules Pelouze and his disciple Ascanio Sobrero, who had first synthesised nitroglycerin in 1847. Nobel first came upon nitroglycerin in France, which Pelouze warned against utilizing as a commercial explosive due to its high sensitivity to shock.
Dynamite is commonly marketed in cardboard cylinders that are 20 cm long and 3.2 cm in diameter, weighing around 190 grammes each. A megajoule of energy is contained in a stick of dynamite created in this manner. Other sizes are available, based on either portion (Quarter-Stick or Half-Stick) or weight (Quarter-Stick or Half-Stick).

Note:
TNT and dynamite are not the same thing. You've probably heard someone use the terms "TNT" and "dynamite" interchangeably in a conversation. TNT (or 2,4,6, -trinitrotoluene, to give it its chemical name) isn't one of them. Instead, nitroglycerin, a chemical, is the primary explosive in dynamite.