Zeppelin
Context
A type of rigid airship named after the German Count Ferdinand von Zeppelin, historically used for passenger and military purposes
Explanation
An early form of air transportation, these airships were distinguished by their large, rigid structure and were propelled by engine-driven propellers
Applications
Zeppelins were used in the early 20th century for transatlantic flights.
The Hindenburg disaster in 1937 marked the end of the zeppelin era.
Modern zeppelins are used primarily for advertising and sightseeing.