![Engraving depicting James Dewar's vacuum flasks. Sir James Dewar (1842-1923) a Scottish chemist and physicist. Dated 20th Century Stock Photo - Alamy Engraving depicting James Dewar's vacuum flasks. Sir James Dewar (1842-1923) a Scottish chemist and physicist. Dated 20th Century Stock Photo - Alamy](https://c8.alamy.com/comp/KJ1JGK/engraving-depicting-james-dewars-vacuum-flasks-sir-james-dewar-1842-KJ1JGK.jpg)
Engraving depicting James Dewar's vacuum flasks. Sir James Dewar (1842-1923) a Scottish chemist and physicist. Dated 20th Century Stock Photo - Alamy
![The Thermos Flask - filling a vacuum - Invention - Bite Sized Britain - Britain's amazing history and culture The Thermos Flask - filling a vacuum - Invention - Bite Sized Britain - Britain's amazing history and culture](https://images.prismic.io/six-things/7b9ff9c3-c9be-4c49-ab8c-a62371b9b5a4_Henry_Jamyn_Brooks_-_Sir_James_Dewar_Lecturing_on_Liquid_Hydrogen_at_the_Royal_Institution_-_1904_900px.jpg?auto=compress,format&rect=0,0,900,900&w=700&h=700)
The Thermos Flask - filling a vacuum - Invention - Bite Sized Britain - Britain's amazing history and culture
Dewar vacuum flask Type G-C, G18C, 2500 ml, 110 mm | Dewar flasks and temperature-control containers | Cooling vessels | Laboratory Glass, Vessels, Consumables | Labware | Carl Roth - Netherlands
![Dewar or Vacuum Flask Fully Diagram Isolated on White Background. Stock Vector - Illustration of background, container: 214936680 Dewar or Vacuum Flask Fully Diagram Isolated on White Background. Stock Vector - Illustration of background, container: 214936680](https://thumbs.dreamstime.com/b/dewar-vacuum-flask-fully-diagram-isolated-white-background-cross-section-cut-away-view-thermos-showing-layers-stock-214936680.jpg)
Dewar or Vacuum Flask Fully Diagram Isolated on White Background. Stock Vector - Illustration of background, container: 214936680
![Engraving depicting James Dewar's vacuum flasks - (top) old flasks for manipulating liquid gases -..., Stock Photo, Picture And Rights Managed Image. Pic. IAM-WHA-099-0158 | agefotostock Engraving depicting James Dewar's vacuum flasks - (top) old flasks for manipulating liquid gases -..., Stock Photo, Picture And Rights Managed Image. Pic. IAM-WHA-099-0158 | agefotostock](https://t1.thpservices.com/previewimage/gallil/5f71d1f5addf91a5a666660ce56b5cbf/iam-wha-099-0158.jpg)
Engraving depicting James Dewar's vacuum flasks - (top) old flasks for manipulating liquid gases -..., Stock Photo, Picture And Rights Managed Image. Pic. IAM-WHA-099-0158 | agefotostock
![Dewar or vacuum flask diagram isolated on white background. Cross section cut away view of thermos vacuum flask. Diagram showing vacuum flask layers Stock Vector Image & Art - Alamy Dewar or vacuum flask diagram isolated on white background. Cross section cut away view of thermos vacuum flask. Diagram showing vacuum flask layers Stock Vector Image & Art - Alamy](https://c8.alamy.com/zooms/6/fdf98a83208b46bc80563e140cd90a57/2ara8br.jpg)