gaz inert

gaz inert

Inert gases are those, including helium and neon, that are not normally chemically reactive. The inert gases argon and krypton are often used in sealed double glazing units because they don't conduct heat as well as air, so they provide better insulation.

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Κλάδος/Τομέας: Πολεμικές τέχνες Category: Oil painting

Mona Lisa

The Mona Lisa is widely recognized as one of the most famous paintings in the history of art. It is a half-length portrait of a seated woman painted ...