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mopatin | Incandescent Lamp Filament in Vacuum Chamber @tinkerbit | Uploaded 5 years ago | Updated 18 seconds ago
I put a tungsten filament from an incandescent light bulb in a vacuum chamber and turn it on. As soon as I let the air into the chamber the tungsten is oxidized (WO3) and broken.

en.wikipedia.org/wiki/Incandescent_light_bulb
en.wikipedia.org/wiki/Tungsten
en.wikipedia.org/wiki/Vacuum_chamber

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Incandescent Lamp Filament in Vacuum Chamber

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Incandescent Lamp Filament in Vacuum Chamber @tinkerbit