Dewar flask
device · 1892 · Electric age
A vacuum vessel for liquefied gases.
What it is made of
- Double glass walls — has part. Two bulbs, one inside the other.
- Vacuum gap between glass walls — has part. It does not conduct heat.
- Silvered glass coating — has part. It reflects heat radiation.
Principles and materials it uses
- Vacuum — uses. A vacuum.
- Liquid nitrogen — uses. Storage.
Where it is used
- LNG carrier — is part of. Insulated tanks.
History: what it evolved from and what it influenced
- Vacuum flask — evolved into. A household Dewar flask.