Insulated bottle with label to complete.

Insulated bottle
In the United Kingdom

1892, the Dewar vase

The Scottish chemist and physicist Sir James Dewar (1842-1923) was the first to produce liquid hydrogen, which was the coldest substance ever produced.

To store this cryogenic material at very low temperatures, he constructed insulated boxes from cork, hay or crumpled newspapers, but none of these solutions held the liquids sufficiently. He then discovered and improved the Arsonval vessel.

In 1892, he proposed his version of the double-walled glass vacuum flask that bears his name, the Dewar flask. It takes the form of a glass balloon with a straight neck. The narrow space between the two walls is almost entirely free of air, this partial vacuum prevents heat conduction and convection for better insulation. He added silver as a metallic coating to prevent radiation. This invention eliminates any possibility of heat transfer by conduction, convection or radiation. He hired a professional glass blower to make a stronger balloon. In 1898, he used this container to transport and introduce liquid hydrogen to the world.

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Stainless steel thermo flask, 750 ml, silver,

Enhance your beverage expperience with stainless steel thermoes!

A cup, mug or bottle thermo are all great for sports, leisure and the office. Since they are

double walled, the hot drinks stay hotter longer and the cold drinks stay colder longer.

- Double walled, stainless steel thermo, with screw on cap

- Hand-wash recommended

- Height: 280 mm, Ø 80 mm, approx. 566 g

- Capacity approx. 750 ml

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