Fire truck
device · 1904 · Electric age
A vehicle with a pump and a ladder.
What it is made of
- Centrifugal pump — has part. A fire pump.
- Ladder — has part. An extending ladder.
Principles and materials it uses
- Fire hydrant — uses. Connection.
- Steel — is made of. The chassis is steel.
History: what it evolved from and what it influenced
- Fire pump — evolved from. A pump on a motor-vehicle chassis.