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  1. Vacuum Flask — 2023-10-09 23:46:28
    …k.jpg" width="300" class="right" }} He researched the liquefaction of gases and the property of matter at extremely low temperatures. He was the first person to liquefy, and later solidify, hydrogen and show that metals had increased ability to conduct…
    … electricity at low temperatures. Using charcoal as an absorbing agent, he separated hydrogen, neon and helium from the air and created the highest kn…
    …own vacuum of his day. {{Image url="Thermos-and-cup.gif" title="Vacuum principle." }} It was his work at low temperatures which led to the idea of the thermos or vacuum flask. His invention was brought to consumers in '''**1904**''' when it …
  2. Stevenson Screen — 2020-08-17 08:38:43
    …l surface, grass is recommended as other surfaces such as concrete can cause significant error leading to all time high temperatures being recorded inaccurately. {{Tag ids="weather climate temperature "}}…
  3. Speedfit — 2017-05-11 00:37:50
    …ssor fittings these useful quick connect/disconnect fittings are used for oil and water even at mains pressure and high temperatures. These fittings have revolutionized tube connection especially for domestic plumbing. Now any novice with DIY experien…

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