dewar

• Nom propre désignant un récipient à double paroi sous vide, utilisé pour conserver des gaz liquéfiés tels que l'air liquide ou l'hélium lors d'expériences scientifiques, nommé d'après son inventeur, le chimiste et physicien écossais Sir James Dewar.

A proper noun referring to a vacuum flask designed to hold liquefied gases such as liquid air or helium for scientific experiments, named after its inventor, the Scottish chemist and physicist Sir James Dewar.

indénombrable · nom propre

1. Vacuum flask for cryogenicsC1formalscientific

   A double-walled container with a vacuum between the walls, used to store extremely cold liquids like liquid air or helium for scientific experiments.

   Récipient de Dewar

   • The laboratory uses a Dewar to store liquid nitrogen for the experiment.
   • He carefully transferred the liquid helium into the Dewar flask.
   • The Dewar maintained the cryogenic temperature for several hours.

   Synonymesdewar flaskvacuum bottlevacuum flask

2. C2formalbritish

   Sir James Dewar (1842–1923), a Scottish chemist and physicist known for his pioneering work in cryogenics and for inventing the vacuum flask that bears his name.

   James Dewar

   • Dewar's research on low-temperature physics was groundbreaking.
   • The Dewar flask was invented by Sir James Dewar in 1892.
   • Many of Dewar's contributions to cryogenics are still used today.