Physics and Chemistry
The technique depends on the fact that black powder is a low explosive, which burns more rapidly when under pressure.
Read more about this topic: Anvil Firing
Famous quotes containing the words physics and/or chemistry:
“The fundamental laws of physics do not describe true facts about reality. Rendered as descriptions of facts, they are false; amended to be true, they lose their explanatory force.”
—Nancy Cartwright (b. 1945)
“If thought makes free, so does the moral sentiment. The mixtures of spiritual chemistry refuse to be analyzed.”
—Ralph Waldo Emerson (1803–1882)