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Dynamite

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Dynamite is a very strong explosive used for moving earth and rock.

Dynamite Diagram
Dynamite Diagram

Before it existed, people used black powder for blasting. However, dynamite was much more powerful and easier to handle safely. It is made by mixing nitroglycerin with special materials. These materials are called sorbents, which act like sponges to soak up the liquid. Nobel also added stabilizers to keep the mixture steady. This way, the explosive stays strong but does not go off by accident.

Women mixing dynamite at Nobel’s Ardeer Factory in 1897
Women mixing dynamite at Nobel’s Ardeer Factory in 1897

To make dynamite work, a specific thing happens in steps. First, the liquid nitroglycerin is mixed into a solid material. Nobel found that diatomaceous earth worked best for this job. This is a type of fossilized algae found in rivers. Once mixed, the substance is shaped into cardboard cylinders called sticks. To start the explosion, a person uses a blasting cap. This is a small tool that creates a controlled blast from a distance. A fuse is used to set it off safely.

Nobels Extradynamit label
Nobels Extradynamit label

A Swedish chemist named Alfred Nobel invented dynamite. His father, Immanuel Nobel, was an engineer who built bridges. Immanuel's work inspired Alfred to find better ways to blast rock. Alfred studied in France under famous chemists like Théophile-Jules Pelouze. He learned about nitroglycerin there, even though it was very sensitive to shock. In 1864, Alfred filed patents for his new methods. He finally received patents for his invention in England and Sweden in 1867.

Aetna dynamite
Aetna dynamite

Dynamite comes in many different sizes and strengths. A single stick of dynamite often contains about 1 megajoule of energy. The strength is usually measured by how much nitroglycerin is inside. For example, 40% dynamite has 40% nitroglycerin and 60% other materials. People must store it carefully because it can "sweat" over time. This means the liquid can leak out of the sticks. To prevent this, workers sometimes turn the boxes upside down. Modern packaging uses plastic bags and wax to help keep it safe.

You might hear people talk about TNT and think it is dynamite.

Nobels Extradynamit label
Nobels Extradynamit label

However, they are actually very different things. TNT is often used by the military in shells and bombs. It is very stable and can even be melted into shapes. Dynamite is mostly used by civilians for digging and construction. While cartoons sometimes use the names interchangeably, they are not the same. Dynamite is better for moving earth, while TNT is better for military use.

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🖼️ Images & Media (4)
File:Dynamite Diagram.svg
Dynamite Diagram.svg
File:Nobels Extradynamit label.jpg
Nobels Extradynamit label.jpg
File:Women mixing dynamite at Nobel’s Ardeer Factory in 1897.jpg
Women mixing dynamite at Nobel’s Ardeer...
File:Aetna dynamite.jpg
Aetna dynamite.jpg
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