De quoi est fait Vase de Dewar
A vacuum vessel for liquefied gases.
- Double glass walls — a pour partie. Two bulbs, one inside the other.
- Vacuum gap between glass walls — a pour partie. It does not conduct heat.
- Silvered glass coating — a pour partie. It reflects heat radiation.
- Vacuum — utilise. A vacuum.
- Liquid nitrogen — utilise. Storage.