Diving bell
device · 330 BC · Ancient world
A bell filled with air for working underwater.
What it is made of
- Bell — has part. A body open at the bottom.
- Ballast weights — has part. It sinks the bell.
- Air supply hose — has part. It replenishes the air (Halley).
Principles and materials it uses
- Pressure — uses. The air is compressed by the water.
- Archimedes’ principle — uses. Sinking with ballast.
- Bronze — is made of. Aristotle described the bell as an upturned cauldron.
History: what it evolved from and what it influenced
- Diving suit — evolved into. Individual equipment.