Percussion cap
part · 1820 · Industrial Revolution
A small cap with a shock-sensitive compound.
Principles and materials it uses
- Copper — is made of. A percussion cap is a copper cap.
- Chemical reaction — uses. Mercury fulminate explodes when struck.
Where it is used
- Cartridge — is part of. A primer in the case.
History: what it evolved from and what it influenced
- Flintlock — evolved from. The percussion lock replaced the flintlock.